25285867080 has 64 divisors (see below), whose sum is σ = 75990657600. Its totient is φ = 6731070720.

The previous prime is 25285867069. The next prime is 25285867111. The reversal of 25285867080 is 8076858252.

It is a super-3 number, since 3×25285867080³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115995 + ... + 253034.

It is an arithmetic number, because the mean of its divisors is an integer number (1187354025).

Almost surely, 2^25285867080 is an apocalyptic number.

25285867080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25285867080 is an abundant number, since it is smaller than the sum of its proper divisors (50704790520).

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

25285867080 is a wasteful number, since it uses less digits than its factorization.

25285867080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369614 (or 369610 counting only the distinct ones).

The product of its (nonzero) digits is 2150400, while the sum is 51.

The spelling of 25285867080 in words is "twenty-five billion, two hundred eighty-five million, eight hundred sixty-seven thousand, eighty".