51432540201 has 24 divisors (see below), whose sum is σ = 87832255680. Its totient is φ = 28376572896.

The previous prime is 51432540139. The next prime is 51432540239. The reversal of 51432540201 is 10204523415.

It is not a de Polignac number, because 51432540201 - 2²³ = 51424151593 is a prime.

It is a super-2 number, since 2×51432540201² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51432540001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14073855 + ... + 14077508.

It is an arithmetic number, because the mean of its divisors is an integer number (3659677320).

Almost surely, 2^51432540201 is an apocalyptic number.

It is an amenable number.

51432540201 is a deficient number, since it is larger than the sum of its proper divisors (36399715479).

51432540201 is a wasteful number, since it uses less digits than its factorization.

51432540201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28151405 (or 28151402 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The spelling of 51432540201 in words is "fifty-one billion, four hundred thirty-two million, five hundred forty thousand, two hundred one".