55571358942 has 96 divisors (see below), whose sum is σ = 135711313920. Its totient is φ = 16281720000.

The previous prime is 55571358907. The next prime is 55571358967. The reversal of 55571358942 is 24985317555.

55571358942 is a `hidden beast` number, since 5 + 5 + 5 + 7 + 13 + 589 + 42 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7982059 + ... + 7989017.

It is an arithmetic number, because the mean of its divisors is an integer number (1413659520).

Almost surely, 2^55571358942 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55571358942, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67855656960).

55571358942 is an abundant number, since it is smaller than the sum of its proper divisors (80139954978).

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

55571358942 is a wasteful number, since it uses less digits than its factorization.

55571358942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8310 (or 8307 counting only the distinct ones).

The product of its digits is 7560000, while the sum is 54.

The spelling of 55571358942 in words is "fifty-five billion, five hundred seventy-one million, three hundred fifty-eight thousand, nine hundred forty-two".