55642753422 has 12 divisors (see below), whose sum is σ = 120559299120. Its totient is φ = 18547584468.

The previous prime is 55642753417. The next prime is 55642753423. The reversal of 55642753422 is 22435724655.

55642753422 is a `hidden beast` number, since 5 + 56 + 42 + 7 + 534 + 22 = 666.

It is a super-2 number, since 2×55642753422² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55642753423) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1545632022 + ... + 1545632057.

It is an arithmetic number, because the mean of its divisors is an integer number (10046608260).

Almost surely, 2^55642753422 is an apocalyptic number.

55642753422 is an abundant number, since it is smaller than the sum of its proper divisors (64916545698).

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

55642753422 is a wasteful number, since it uses less digits than its factorization.

55642753422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3091264087 (or 3091264084 counting only the distinct ones).

The product of its digits is 2016000, while the sum is 45.

The spelling of 55642753422 in words is "fifty-five billion, six hundred forty-two million, seven hundred fifty-three thousand, four hundred twenty-two".