55121125650654 has 24 divisors (see below), whose sum is σ = 128240986208328. Its totient is φ = 15748893042960.

The previous prime is 55121125650559. The next prime is 55121125650683. The reversal of 55121125650654 is 45605652112155.

It is a Curzon number.

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, 93743410677 + ... + 93743411264.

It is an arithmetic number, because the mean of its divisors is an integer number (5343374425347).

Almost surely, 2^{55121125650654} is an apocalyptic number.

55121125650654 is an abundant number, since it is smaller than the sum of its proper divisors (73119860557674).

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

55121125650654 is a wasteful number, since it uses less digits than its factorization.

55121125650654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187486821960 (or 187486821953 counting only the distinct ones).

The product of its (nonzero) digits is 1800000, while the sum is 48.

The spelling of 55121125650654 in words is "fifty-five trillion, one hundred twenty-one billion, one hundred twenty-five million, six hundred fifty thousand, six hundred fifty-four".