51051005995 has 48 divisors (see below), whose sum is σ = 69196688640. Its totient is φ = 35857080000.

The previous prime is 51051005987. The next prime is 51051006023. The reversal of 51051005995 is 59950015015.

It is not a de Polignac number, because 51051005995 - 2³ = 51051005987 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 48573220 + ... + 48574270.

It is an arithmetic number, because the mean of its divisors is an integer number (1441597680).

Almost surely, 2^51051005995 is an apocalyptic number.

51051005995 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51051005995 is a deficient number, since it is larger than the sum of its proper divisors (18145682645).

51051005995 is a wasteful number, since it uses less digits than its factorization.

51051005995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2048 (or 2017 counting only the distinct ones).

The product of its (nonzero) digits is 50625, while the sum is 40.

The spelling of 51051005995 in words is "fifty-one billion, fifty-one million, five thousand, nine hundred ninety-five".