55291516770 has 128 divisors (see below), whose sum is σ = 166579752960. Its totient is φ = 11452320000.

The previous prime is 55291516723. The next prime is 55291516801. The reversal of 55291516770 is 7761519255.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 209481 + ... + 393020.

It is an arithmetic number, because the mean of its divisors is an integer number (1301404320).

Almost surely, 2^55291516770 is an apocalyptic number.

55291516770 is an abundant number, since it is smaller than the sum of its proper divisors (111288236190).

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

55291516770 is a wasteful number, since it uses less digits than its factorization.

55291516770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602560.

The product of its (nonzero) digits is 661500, while the sum is 48.

The spelling of 55291516770 in words is "fifty-five billion, two hundred ninety-one million, five hundred sixteen thousand, seven hundred seventy".