55536540 has 48 divisors (see below), whose sum is σ = 156401280. Its totient is φ = 14724160.

The previous prime is 55536499. The next prime is 55536541. The reversal of 55536540 is 4563555.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55536541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8155 + ... + 13325.

It is an arithmetic number, because the mean of its divisors is an integer number (3258360).

Almost surely, 2^55536540 is an apocalyptic number.

It is an amenable number.

55536540 is an abundant number, since it is smaller than the sum of its proper divisors (100864740).

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

55536540 is a wasteful number, since it uses less digits than its factorization.

55536540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5362 (or 5360 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 33.

The square root of 55536540 is about 7452.2842135818. The cubic root of 55536540 is about 381.5278744619.

The spelling of 55536540 in words is "fifty-five million, five hundred thirty-six thousand, five hundred forty".