54505620 has 72 divisors (see below), whose sum is σ = 178059336. Its totient is φ = 13416192.

The previous prime is 54505613. The next prime is 54505637. The reversal of 54505620 is 2650545.

54505620 is a `hidden beast` number, since 54 + 50 + 562 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1710864 + 52794756 = 1308^2 + 7266^2 .

It is a super-2 number, since 2×54505620² = 5941725223168800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9307 + ... + 13986.

Almost surely, 2^54505620 is an apocalyptic number.

It is an amenable number.

54505620 is an abundant number, since it is smaller than the sum of its proper divisors (123553716).

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

54505620 is a wasteful number, since it uses less digits than its factorization.

54505620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23321 (or 23316 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 54505620 is about 7382.7921547339. The cubic root of 54505620 is about 379.1523580855.

The spelling of 54505620 in words is "fifty-four million, five hundred five thousand, six hundred twenty".