25164892297 has 4 divisors (see below), whose sum is σ = 25203079440. Its totient is φ = 25126705156.

The previous prime is 25164892253. The next prime is 25164892309. The reversal of 25164892297 is 79229846152.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25164892297 - 2⁷ = 25164892169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25164892097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19092583 + ... + 19093900.

It is an arithmetic number, because the mean of its divisors is an integer number (6300769860).

Almost surely, 2^25164892297 is an apocalyptic number.

It is an amenable number.

25164892297 is a deficient number, since it is larger than the sum of its proper divisors (38187143).

25164892297 is an equidigital number, since it uses as much as digits as its factorization.

25164892297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38187142.

The product of its digits is 4354560, while the sum is 55.

The spelling of 25164892297 in words is "twenty-five billion, one hundred sixty-four million, eight hundred ninety-two thousand, two hundred ninety-seven".