51101055590 has 48 divisors (see below), whose sum is σ = 99654277968. Its totient is φ = 18866711136.

The previous prime is 51101055589. The next prime is 51101055601. The reversal of 51101055590 is 9555010115.

It is a super-2 number, since 2×51101055590² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3706049 + ... + 3719811.

It is an arithmetic number, because the mean of its divisors is an integer number (2076130791).

Almost surely, 2^51101055590 is an apocalyptic number.

51101055590 is a deficient number, since it is larger than the sum of its proper divisors (48553222378).

51101055590 is an frugal number, since it uses more digits than its factorization.

51101055590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13835 (or 13783 counting only the distinct ones).

The product of its (nonzero) digits is 5625, while the sum is 32.

The spelling of 51101055590 in words is "fifty-one billion, one hundred one million, fifty-five thousand, five hundred ninety".