51312040355 has 16 divisors (see below), whose sum is σ = 65317044384. Its totient is φ = 38563499520.

The previous prime is 51312040349. The next prime is 51312040363. The reversal of 51312040355 is 55304021315.

It is not a de Polignac number, because 51312040355 - 2¹⁸ = 51311778211 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 511937 + ... + 603906.

It is an arithmetic number, because the mean of its divisors is an integer number (4082315274).

Almost surely, 2^51312040355 is an apocalyptic number.

51312040355 is a deficient number, since it is larger than the sum of its proper divisors (14005004029).

51312040355 is a wasteful number, since it uses less digits than its factorization.

51312040355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1116406.

The product of its (nonzero) digits is 9000, while the sum is 29.

The spelling of 51312040355 in words is "fifty-one billion, three hundred twelve million, forty thousand, three hundred fifty-five".