25830464280 has 64 divisors (see below), whose sum is σ = 81569894400. Its totient is φ = 6525590400.

The previous prime is 25830464263. The next prime is 25830464281. The reversal of 25830464280 is 8246403852.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25830464281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5662296 + ... + 5666855.

It is an arithmetic number, because the mean of its divisors is an integer number (1274529600).

Almost surely, 2^25830464280 is an apocalyptic number.

25830464280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25830464280 is an abundant number, since it is smaller than the sum of its proper divisors (55739430120).

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

25830464280 is a wasteful number, since it uses less digits than its factorization.

25830464280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11329184 (or 11329180 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 42.

The spelling of 25830464280 in words is "twenty-five billion, eight hundred thirty million, four hundred sixty-four thousand, two hundred eighty".