25725874284 has 72 divisors (see below), whose sum is σ = 72104082960. Its totient is φ = 7667913600.

The previous prime is 25725874271. The next prime is 25725874297. The reversal of 25725874284 is 48247852752.

It is a happy number.

25725874284 is a `hidden beast` number, since 2 + 57 + 2 + 587 + 4 + 2 + 8 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (25725874271) and next prime (25725874297).

It is a self number, because there is not a number n which added to its sum of digits gives 25725874284.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 508339 + ... + 556650.

Almost surely, 2^25725874284 is an apocalyptic number.

It is an amenable number.

25725874284 is an abundant number, since it is smaller than the sum of its proper divisors (46378208676).

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

25725874284 is a wasteful number, since it uses less digits than its factorization.

25725874284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1065071 (or 1065066 counting only the distinct ones).

The product of its digits is 10035200, while the sum is 54.

It can be divided in two parts, 25725 and 874284, that added together give a palindrome (900009).

The spelling of 25725874284 in words is "twenty-five billion, seven hundred twenty-five million, eight hundred seventy-four thousand, two hundred eighty-four".