25697422770 has 32 divisors (see below), whose sum is σ = 62518666752. Its totient is φ = 6758773632.

The previous prime is 25697422763. The next prime is 25697422771. The reversal of 25697422770 is 7722479652.

It is a super-2 number, since 2×25697422770² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25697422771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5864802 + ... + 5869181.

It is an arithmetic number, because the mean of its divisors is an integer number (1953708336).

Almost surely, 2^25697422770 is an apocalyptic number.

25697422770 is an abundant number, since it is smaller than the sum of its proper divisors (36821243982).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25697422770 is a wasteful number, since it uses less digits than its factorization.

25697422770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11734066.

The product of its (nonzero) digits is 2963520, while the sum is 51.

The spelling of 25697422770 in words is "twenty-five billion, six hundred ninety-seven million, four hundred twenty-two thousand, seven hundred seventy".