25210753497 has 16 divisors (see below), whose sum is σ = 39315016000. Its totient is φ = 15922580832.

The previous prime is 25210753493. The next prime is 25210753549. The reversal of 25210753497 is 79435701252.

It is a happy number.

25210753497 is a `hidden beast` number, since 2 + 5 + 2 + 107 + 53 + 497 = 666.

It is not a de Polignac number, because 25210753497 - 2² = 25210753493 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25210753493) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24571372 + ... + 24572397.

It is an arithmetic number, because the mean of its divisors is an integer number (2457188500).

Almost surely, 2^25210753497 is an apocalyptic number.

25210753497 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

25210753497 is a deficient number, since it is larger than the sum of its proper divisors (14104262503).

25210753497 is a wasteful number, since it uses less digits than its factorization.

25210753497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49143797 (or 49143791 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 45.

The spelling of 25210753497 in words is "twenty-five billion, two hundred ten million, seven hundred fifty-three thousand, four hundred ninety-seven".