55653850764 has 96 divisors (see below), whose sum is σ = 145157342400. Its totient is φ = 18439764480.

The previous prime is 55653850751. The next prime is 55653850781. The reversal of 55653850764 is 46705835655.

It is a happy number.

55653850764 is a `hidden beast` number, since 5 + 56 + 538 + 50 + 7 + 6 + 4 = 666.

It is a super-2 number, since 2×55653850764² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 55653850764.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18819574 + ... + 18822530.

It is an arithmetic number, because the mean of its divisors is an integer number (1512055650).

Almost surely, 2^55653850764 is an apocalyptic number.

55653850764 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55653850764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72578671200).

55653850764 is an abundant number, since it is smaller than the sum of its proper divisors (89503491636).

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

55653850764 is a wasteful number, since it uses less digits than its factorization.

55653850764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3960 (or 3952 counting only the distinct ones).

The product of its (nonzero) digits is 15120000, while the sum is 54.

The spelling of 55653850764 in words is "fifty-five billion, six hundred fifty-three million, eight hundred fifty thousand, seven hundred sixty-four".