51102535550 has 24 divisors (see below), whose sum is σ = 103691691432. Its totient is φ = 18582740000.

The previous prime is 51102535529. The next prime is 51102535553. The reversal of 51102535550 is 5553520115.

It is a super-2 number, since 2×51102535550² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51102535553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46456301 + ... + 46457400.

It is an arithmetic number, because the mean of its divisors is an integer number (4320487143).

Almost surely, 2^51102535550 is an apocalyptic number.

51102535550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51102535550 is an abundant number, since it is smaller than the sum of its proper divisors (52589155882).

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

51102535550 is a wasteful number, since it uses less digits than its factorization.

51102535550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92913724 (or 92913719 counting only the distinct ones).

The product of its (nonzero) digits is 18750, while the sum is 32.

The spelling of 51102535550 in words is "fifty-one billion, one hundred two million, five hundred thirty-five thousand, five hundred fifty".