55120213124250 has 32 divisors (see below), whose sum is σ = 137580051960000. Its totient is φ = 14698723499600.

The previous prime is 55120213124203. The next prime is 55120213124287. The reversal of 55120213124250 is 5242131202155.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36746808000 + ... + 36746809499.

It is an arithmetic number, because the mean of its divisors is an integer number (4299376623750).

Almost surely, 2^{55120213124250} is an apocalyptic number.

55120213124250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55120213124250 is an abundant number, since it is smaller than the sum of its proper divisors (82459838835750).

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

55120213124250 is a wasteful number, since it uses less digits than its factorization.

55120213124250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73493617519 (or 73493617509 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 33.

The spelling of 55120213124250 in words is "fifty-five trillion, one hundred twenty billion, two hundred thirteen million, one hundred twenty-four thousand, two hundred fifty".