25754502864 has 40 divisors (see below), whose sum is σ = 67018121280. Its totient is φ = 8522169088.

The previous prime is 25754502863. The next prime is 25754502911. The reversal of 25754502864 is 46820545752.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25754502863) 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 7 ways as a sum of consecutive naturals, for example, 1951644 + ... + 1964795.

It is an arithmetic number, because the mean of its divisors is an integer number (1675453032).

Almost surely, 2^25754502864 is an apocalyptic number.

25754502864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

25754502864 is an abundant number, since it is smaller than the sum of its proper divisors (41263618416).

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

25754502864 is a wasteful number, since it uses less digits than its factorization.

25754502864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3916587 (or 3916581 counting only the distinct ones).

The product of its (nonzero) digits is 2688000, while the sum is 48.

The spelling of 25754502864 in words is "twenty-five billion, seven hundred fifty-four million, five hundred two thousand, eight hundred sixty-four".