55555050505542 has 32 divisors (see below), whose sum is σ = 126983307542784. Its totient is φ = 15872829703200.

The previous prime is 55555050505499. The next prime is 55555050505553. The reversal of 55555050505542 is 24550505055555.

It is a congruent number.

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, 16648617 + ... + 19704987.

It is an arithmetic number, because the mean of its divisors is an integer number (3968228360712).

Almost surely, 2^{55555050505542} is an apocalyptic number.

55555050505542 is an abundant number, since it is smaller than the sum of its proper divisors (71428257037242).

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

55555050505542 is a wasteful number, since it uses less digits than its factorization.

55555050505542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3489164.

The product of its (nonzero) digits is 15625000, while the sum is 51.

The spelling of 55555050505542 in words is "fifty-five trillion, five hundred fifty-five billion, fifty million, five hundred five thousand, five hundred forty-two".