52051400156421 has 32 divisors (see below), whose sum is σ = 80467068384000. Its totient is φ = 33191728694784.

The previous prime is 52051400156363. The next prime is 52051400156461. The reversal of 52051400156421 is 12465100415025.

52051400156421 is a `hidden beast` number, since 5 + 2 + 0 + 5 + 1 + 4 + 0 + 0 + 1 + 5 + 642 + 1 = 666.

It is not a de Polignac number, because 52051400156421 - 2³¹ = 52049252672773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52051400156461) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46449165 + ... + 47556573.

It is an arithmetic number, because the mean of its divisors is an integer number (2514595887000).

Almost surely, 2^{52051400156421} is an apocalyptic number.

It is an amenable number.

52051400156421 is a deficient number, since it is larger than the sum of its proper divisors (28415668227579).

52051400156421 is a wasteful number, since it uses less digits than its factorization.

52051400156421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1183130 (or 1183124 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

The spelling of 52051400156421 in words is "fifty-two trillion, fifty-one billion, four hundred million, one hundred fifty-six thousand, four hundred twenty-one".