25147299241 has 9 divisors (see below), whose sum is σ = 25275285399. Its totient is φ = 25019960304.

The previous prime is 25147299239. The next prime is 25147299253. The reversal of 25147299241 is 14299274152.

The square root of 25147299241 is 158579.

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

It can be written as a sum of positive squares in only one way, i.e., 21748875625 + 3398423616 = 147475^2 + 58296^2 .

It is not a de Polignac number, because 25147299241 - 2¹ = 25147299239 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25147299191 and 25147299200.

It is not an unprimeable number, because it can be changed into a prime (25147299211) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 55026685 + ... + 55027141.

Almost surely, 2^25147299241 is an apocalyptic number.

25147299241 is the 158579-th square number.

25147299241 is the 79290-th centered octagonal number.

It is an amenable number.

25147299241 is a deficient number, since it is larger than the sum of its proper divisors (127986158).

25147299241 is an frugal number, since it uses more digits than its factorization.

25147299241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1608 (or 804 counting only the distinct ones).

The product of its digits is 362880, while the sum is 46.

The spelling of 25147299241 in words is "twenty-five billion, one hundred forty-seven million, two hundred ninety-nine thousand, two hundred forty-one".