25454664160 has 48 divisors (see below), whose sum is σ = 62210332800. Its totient is φ = 9830765056.

The previous prime is 25454664143. The next prime is 25454664203. The reversal of 25454664160 is 6146645452.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2738320 + ... + 2747599.

It is an arithmetic number, because the mean of its divisors is an integer number (1296048600).

Almost surely, 2^25454664160 is an apocalyptic number.

25454664160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25454664160 is an abundant number, since it is smaller than the sum of its proper divisors (36755668640).

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

25454664160 is a wasteful number, since it uses less digits than its factorization.

25454664160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5485963 (or 5485955 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 43.

The spelling of 25454664160 in words is "twenty-five billion, four hundred fifty-four million, six hundred sixty-four thousand, one hundred sixty".