55673545690 has 24 divisors (see below), whose sum is σ = 116573588532. Its totient is φ = 19088072640.

The previous prime is 55673545687. The next prime is 55673545691. The reversal of 55673545690 is 9654537655.

It can be written as a sum of positive squares in 2 ways, for example, as 50009929641 + 5663616049 = 223629^2 + 75257^2 .

It is a super-2 number, since 2×55673545690² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (55673545691) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56809251 + ... + 56810230.

Almost surely, 2^55673545690 is an apocalyptic number.

55673545690 is an abundant number, since it is smaller than the sum of its proper divisors (60900042842).

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

55673545690 is a wasteful number, since it uses less digits than its factorization.

55673545690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113619502 (or 113619495 counting only the distinct ones).

The product of its (nonzero) digits is 17010000, while the sum is 55.

The spelling of 55673545690 in words is "fifty-five billion, six hundred seventy-three million, five hundred forty-five thousand, six hundred ninety".