51005460550 has 24 divisors (see below), whose sum is σ = 103494717432. Its totient is φ = 18547440000.

The previous prime is 51005460521. The next prime is 51005460581. The reversal of 51005460550 is 5506450015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46368051 + ... + 46369150.

It is an arithmetic number, because the mean of its divisors is an integer number (4312279893).

Almost surely, 2^51005460550 is an apocalyptic number.

51005460550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51005460550 is an abundant number, since it is smaller than the sum of its proper divisors (52489256882).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51005460550 is a wasteful number, since it uses less digits than its factorization.

51005460550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92737224 (or 92737219 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 31.

The spelling of 51005460550 in words is "fifty-one billion, five million, four hundred sixty thousand, five hundred fifty".