55536020 has 12 divisors (see below), whose sum is σ = 116625684. Its totient is φ = 22214400.

The previous prime is 55535989. The next prime is 55536023. The reversal of 55536020 is 2063555.

It can be written as a sum of positive squares in 2 ways, for example, as 37405456 + 18130564 = 6116^2 + 4258^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55536023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1388381 + ... + 1388420.

It is an arithmetic number, because the mean of its divisors is an integer number (9718807).

Almost surely, 2^55536020 is an apocalyptic number.

It is an amenable number.

55536020 is an abundant number, since it is smaller than the sum of its proper divisors (61089664).

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

55536020 is a wasteful number, since it uses less digits than its factorization.

55536020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2776810 (or 2776808 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 55536020 is about 7452.2493248683. The cubic root of 55536020 is about 381.5266836837.

Adding to 55536020 its reverse (2063555), we get a palindrome (57599575).

The spelling of 55536020 in words is "fifty-five million, five hundred thirty-six thousand, twenty".