25387678352 has 40 divisors (see below), whose sum is σ = 50033464320. Its totient is φ = 12477628800.

The previous prime is 25387678339. The next prime is 25387678361.

It is a happy number.

25387678352 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168113 + ... + 281135.

It is an arithmetic number, because the mean of its divisors is an integer number (1250836608).

Almost surely, 2^25387678352 is an apocalyptic number.

It is an amenable number.

25387678352 is a deficient number, since it is larger than the sum of its proper divisors (24645785968).

25387678352 is a wasteful number, since it uses less digits than its factorization.

25387678352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113271 (or 113265 counting only the distinct ones).

The product of its digits is 16934400, while the sum is 56.

The spelling of 25387678352 in words is "twenty-five billion, three hundred eighty-seven million, six hundred seventy-eight thousand, three hundred fifty-two".