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25233004801 = 1588492
BaseRepresentation
bin10111100000000000…
…010001100100000001
32102010112100110022101
4113200000101210001
5403134122123201
615331502510401
71552204000444
oct274000214401
972115313271
1025233004801
11a779411a84
124a82595401
1324c18a8394
1413152bb65b
159ca39ad01
hex5e0011901

25233004801 has 3 divisors (see below), whose sum is σ = 25233163651. Its totient is φ = 25232845952.

The previous prime is 25233004793. The next prime is 25233004847. The reversal of 25233004801 is 10840033252.

The square root of 25233004801 is 158849.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 231070401 + 25001934400 = 15201^2 + 158120^2 .

It is not a de Polignac number, because 25233004801 - 23 = 25233004793 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25233004801.

It is not an unprimeable number, because it can be changed into a prime (25233004501) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 79425 + ... + 238273.

Almost surely, 225233004801 is an apocalyptic number.

25233004801 is the 158849-th square number.

25233004801 is the 79425-th centered octagonal number.

It is an amenable number.

25233004801 is a deficient number, since it is larger than the sum of its proper divisors (158850).

25233004801 is an frugal number, since it uses more digits than its factorization.

25233004801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317698 (or 158849 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The spelling of 25233004801 in words is "twenty-five billion, two hundred thirty-three million, four thousand, eight hundred one".

Divisors: 1 158849 25233004801