51607571929 has 9 divisors (see below), whose sum is σ = 51832310517. Its totient is φ = 51383806524.

The previous prime is 51607571927. The next prime is 51607571941. The reversal of 51607571929 is 92917570615.

The square root of 51607571929 is 227173.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 51607571929 - 2¹ = 51607571927 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51607571921) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 83372182 + ... + 83372800.

It is an arithmetic number, because the mean of its divisors is an integer number (5759145613).

Almost surely, 2^51607571929 is an apocalyptic number.

51607571929 is the 227173-rd square number.

51607571929 is the 113587-th centered octagonal number.

It is an amenable number.

51607571929 is a deficient number, since it is larger than the sum of its proper divisors (224738588).

51607571929 is an frugal number, since it uses more digits than its factorization.

51607571929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1972 (or 986 counting only the distinct ones).

The product of its (nonzero) digits is 1190700, while the sum is 52.

The spelling of 51607571929 in words is "fifty-one billion, six hundred seven million, five hundred seventy-one thousand, nine hundred twenty-nine".