25647057097 has 8 divisors (see below), whose sum is σ = 27215743680. Its totient is φ = 24116170320.

The previous prime is 25647057067. The next prime is 25647057101. The reversal of 25647057097 is 79075074652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25647057097 - 2¹⁵ = 25647024329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25647057017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9448554 + ... + 9451267.

It is an arithmetic number, because the mean of its divisors is an integer number (3401967960).

Almost surely, 2^25647057097 is an apocalyptic number.

It is an amenable number.

25647057097 is a deficient number, since it is larger than the sum of its proper divisors (1568686583).

25647057097 is a wasteful number, since it uses less digits than its factorization.

25647057097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18899903.

The product of its (nonzero) digits is 3704400, while the sum is 52.

The spelling of 25647057097 in words is "twenty-five billion, six hundred forty-seven million, fifty-seven thousand, ninety-seven".