25457534147540 has 48 divisors (see below), whose sum is σ = 58898331080064. Its totient is φ = 9165628848000.

The previous prime is 25457534147537. The next prime is 25457534147603. The reversal of 25457534147540 is 4574143575452.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 572829584 + ... + 572874023.

It is an arithmetic number, because the mean of its divisors is an integer number (1227048564168).

Almost surely, 2^{25457534147540} is an apocalyptic number.

25457534147540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25457534147540 is an abundant number, since it is smaller than the sum of its proper divisors (33440796932524).

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

25457534147540 is a wasteful number, since it uses less digits than its factorization.

25457534147540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1145703728 (or 1145703726 counting only the distinct ones).

The product of its (nonzero) digits is 47040000, while the sum is 56.

The spelling of 25457534147540 in words is "twenty-five trillion, four hundred fifty-seven billion, five hundred thirty-four million, one hundred forty-seven thousand, five hundred forty".