25275012651400 has 24 divisors (see below), whose sum is σ = 58764404414970. Its totient is φ = 10110005060480.

The previous prime is 25275012651391. The next prime is 25275012651451. The reversal of 25275012651400 is 415621057252.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 21471490782756 + 3803521868644 = 4633734^2 + 1950262^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 63187531429 + ... + 63187531828.

Almost surely, 2^{25275012651400} is an apocalyptic number.

25275012651400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25275012651400 is an abundant number, since it is smaller than the sum of its proper divisors (33489391763570).

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

25275012651400 is a wasteful number, since it uses less digits than its factorization.

25275012651400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126375063273 (or 126375063264 counting only the distinct ones).

The product of its (nonzero) digits is 168000, while the sum is 40.

The spelling of 25275012651400 in words is "twenty-five trillion, two hundred seventy-five billion, twelve million, six hundred fifty-one thousand, four hundred".