55653500 has 48 divisors (see below), whose sum is σ = 138919872. Its totient is φ = 19080000.

The previous prime is 55653487. The next prime is 55653509. The reversal of 55653500 is 535655.

55653500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55653509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4451 + ... + 11450.

It is an arithmetic number, because the mean of its divisors is an integer number (2894164).

Almost surely, 2^55653500 is an apocalyptic number.

55653500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55653500 is an abundant number, since it is smaller than the sum of its proper divisors (83266372).

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

55653500 is a wasteful number, since it uses less digits than its factorization.

55653500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15927 (or 15915 counting only the distinct ones).

The product of its (nonzero) digits is 11250, while the sum is 29.

The square root of 55653500 is about 7460.1273447576. The cubic root of 55653500 is about 381.7955193379.

The spelling of 55653500 in words is "fifty-five million, six hundred fifty-three thousand, five hundred".