25354980 has 72 divisors (see below), whose sum is σ = 87901632. Its totient is φ = 5795136.

The previous prime is 25354969. The next prime is 25354991. The reversal of 25354980 is 8945352.

25354980 is a `hidden beast` number, since 2 + 535 + 49 + 80 = 666.

It is an interprime number because it is at equal distance from previous prime (25354969) and next prime (25354991).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8802 + ... + 11321.

It is an arithmetic number, because the mean of its divisors is an integer number (1220856).

Almost surely, 2^25354980 is an apocalyptic number.

25354980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25354980 is an abundant number, since it is smaller than the sum of its proper divisors (62546652).

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

25354980 is a wasteful number, since it uses less digits than its factorization.

25354980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20145 (or 20140 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 25354980 is about 5035.3728759646. The cubic root of 25354980 is about 293.7792317371.

The spelling of 25354980 in words is "twenty-five million, three hundred fifty-four thousand, nine hundred eighty".