55200121625 has 32 divisors (see below), whose sum is σ = 75228117120. Its totient is φ = 40105128000.

The previous prime is 55200121607. The next prime is 55200121679. The reversal of 55200121625 is 52612100255.

It is not a de Polignac number, because 55200121625 - 2¹⁰ = 55200120601 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1381427 + ... + 1420823.

It is an arithmetic number, because the mean of its divisors is an integer number (2350878660).

Almost surely, 2^55200121625 is an apocalyptic number.

55200121625 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55200121625 is a deficient number, since it is larger than the sum of its proper divisors (20027995495).

55200121625 is a wasteful number, since it uses less digits than its factorization.

55200121625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40442 (or 40432 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 29.

The spelling of 55200121625 in words is "fifty-five billion, two hundred million, one hundred twenty-one thousand, six hundred twenty-five".