25125055027540 has 36 divisors (see below), whose sum is σ = 57133483126524. Its totient is φ = 9276943393536.

The previous prime is 25125055027507. The next prime is 25125055027561. The reversal of 25125055027540 is 4572055052152.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 1034883013264 + 24090172014276 = 1017292^2 + 4908174^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3716720737 + ... + 3716727496.

It is an arithmetic number, because the mean of its divisors is an integer number (1587041197959).

Almost surely, 2^{25125055027540} is an apocalyptic number.

25125055027540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25125055027540 is an abundant number, since it is smaller than the sum of its proper divisors (32008428098984).

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

25125055027540 is a wasteful number, since it uses less digits than its factorization.

25125055027540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7433448268 (or 7433448253 counting only the distinct ones).

The product of its (nonzero) digits is 700000, while the sum is 43.

The spelling of 25125055027540 in words is "twenty-five trillion, one hundred twenty-five billion, fifty-five million, twenty-seven thousand, five hundred forty".