515100105550 has 24 divisors (see below), whose sum is σ = 958137320376. Its totient is φ = 206029047840.

The previous prime is 515100105539. The next prime is 515100105617. The reversal of 515100105550 is 55501001515.

It is a super-2 number, since 2×515100105550² (a number of 24 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 11 ways as a sum of consecutive naturals, for example, 706204 + ... + 1236496.

It is an arithmetic number, because the mean of its divisors is an integer number (39922388349).

Almost surely, 2^515100105550 is an apocalyptic number.

515100105550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

515100105550 is a deficient number, since it is larger than the sum of its proper divisors (443037214826).

515100105550 is a wasteful number, since it uses less digits than its factorization.

515100105550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549732 (or 549727 counting only the distinct ones).

The product of its (nonzero) digits is 3125, while the sum is 28.

The spelling of 515100105550 in words is "five hundred fifteen billion, one hundred million, one hundred five thousand, five hundred fifty".