51515422450452 has 96 divisors (see below), whose sum is σ = 140603232000000. Its totient is φ = 16266253725792.

The previous prime is 51515422450409. The next prime is 51515422450483. The reversal of 51515422450452 is 25405422451515.

51515422450452 is a `hidden beast` number, since 5 + 1 + 5 + 1 + 542 + 2 + 4 + 50 + 4 + 52 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 51515422450398 and 51515422450407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17511799 + ... + 20240897.

It is an arithmetic number, because the mean of its divisors is an integer number (1464617000000).

Almost surely, 2^{51515422450452} is an apocalyptic number.

It is an amenable number.

51515422450452 is an abundant number, since it is smaller than the sum of its proper divisors (89087809549548).

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

51515422450452 is a wasteful number, since it uses less digits than its factorization.

51515422450452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2738330 (or 2738322 counting only the distinct ones).

The product of its (nonzero) digits is 1600000, while the sum is 45.

The spelling of 51515422450452 in words is "fifty-one trillion, five hundred fifteen billion, four hundred twenty-two million, four hundred fifty thousand, four hundred fifty-two".