51007353507 has 32 divisors (see below), whose sum is σ = 86774880000. Its totient is φ = 29286515520.

The previous prime is 51007353497. The next prime is 51007353547. The reversal of 51007353507 is 70535370015.

It is a happy number.

51007353507 is a `hidden beast` number, since 51 + 0 + 0 + 73 + 535 + 0 + 7 = 666.

It is not a de Polignac number, because 51007353507 - 2⁴ = 51007353491 is a prime.

It is a super-2 number, since 2×51007353507² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51007353547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4513882 + ... + 4525167.

It is an arithmetic number, because the mean of its divisors is an integer number (2711715000).

Almost surely, 2^51007353507 is an apocalyptic number.

51007353507 is a gapful number since it is divisible by the number (57) formed by its first and last digit.

51007353507 is a deficient number, since it is larger than the sum of its proper divisors (35767526493).

51007353507 is a wasteful number, since it uses less digits than its factorization.

51007353507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9039088 (or 9039082 counting only the distinct ones).

The product of its (nonzero) digits is 55125, while the sum is 36.

The spelling of 51007353507 in words is "fifty-one billion, seven million, three hundred fifty-three thousand, five hundred seven".