51232362555 has 24 divisors (see below), whose sum is σ = 90101216016. Its totient is φ = 24839932480.

The previous prime is 51232362521. The next prime is 51232362563. The reversal of 51232362555 is 55526323215.

It is a happy number.

It is not a de Polignac number, because 51232362555 - 2⁹ = 51232362043 is a prime.

It is a super-2 number, since 2×51232362555² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14111784 + ... + 14115413.

It is an arithmetic number, because the mean of its divisors is an integer number (3754217334).

Almost surely, 2^51232362555 is an apocalyptic number.

51232362555 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51232362555 is a deficient number, since it is larger than the sum of its proper divisors (38868853461).

51232362555 is a wasteful number, since it uses less digits than its factorization.

51232362555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28227227 (or 28227216 counting only the distinct ones).

The product of its digits is 270000, while the sum is 39.

The spelling of 51232362555 in words is "fifty-one billion, two hundred thirty-two million, three hundred sixty-two thousand, five hundred fifty-five".