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25000530053 = 96492590997
BaseRepresentation
bin10111010010001001…
…011101000010000101
32101112022220111220112
4113102021131002011
5402200113430203
615252440042405
71543351666502
oct272211350205
971468814815
1025000530053
11a66a169294
124a18763405
132485690865
1412d24844a9
159b4c796d8
hex5d225d085

25000530053 has 4 divisors (see below), whose sum is σ = 25003130700. Its totient is φ = 24997929408.

The previous prime is 25000530043. The next prime is 25000530059. The reversal of 25000530053 is 35003500052.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15900705604 + 9099824449 = 126098^2 + 95393^2 .

It is a cyclic number.

It is not a de Polignac number, because 25000530053 - 214 = 25000513669 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25000530059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1285850 + ... + 1305147.

It is an arithmetic number, because the mean of its divisors is an integer number (6250782675).

Almost surely, 225000530053 is an apocalyptic number.

It is an amenable number.

25000530053 is a deficient number, since it is larger than the sum of its proper divisors (2600647).

25000530053 is an equidigital number, since it uses as much as digits as its factorization.

25000530053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2600646.

The product of its (nonzero) digits is 2250, while the sum is 23.

The spelling of 25000530053 in words is "twenty-five billion, five hundred thirty thousand, fifty-three".

Divisors: 1 9649 2590997 25000530053