51150539555 has 32 divisors (see below), whose sum is σ = 65488750080. Its totient is φ = 38284047360.

The previous prime is 51150539543. The next prime is 51150539567. The reversal of 51150539555 is 55593505115.

It is an interprime number because it is at equal distance from previous prime (51150539543) and next prime (51150539567).

It is not a de Polignac number, because 51150539555 - 2²² = 51146345251 is a prime.

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, 871991 + ... + 928799.

It is an arithmetic number, because the mean of its divisors is an integer number (2046523440).

Almost surely, 2^51150539555 is an apocalyptic number.

51150539555 is a deficient number, since it is larger than the sum of its proper divisors (14338210525).

51150539555 is a wasteful number, since it uses less digits than its factorization.

51150539555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57039.

The product of its (nonzero) digits is 421875, while the sum is 44.

The spelling of 51150539555 in words is "fifty-one billion, one hundred fifty million, five hundred thirty-nine thousand, five hundred fifty-five".