55453545 has 96 divisors (see below), whose sum is σ = 117210240. Its totient is φ = 24796800.

The previous prime is 55453523. The next prime is 55453547. The reversal of 55453545 is 54535455.

55453545 is a `hidden beast` number, since 554 + 53 + 54 + 5 = 666.

It is not a de Polignac number, because 55453545 - 2⁸ = 55453289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55453547) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 548995 + ... + 549095.

It is an arithmetic number, because the mean of its divisors is an integer number (1220940).

Almost surely, 2^55453545 is an apocalyptic number.

It is an amenable number.

55453545 is an abundant number, since it is smaller than the sum of its proper divisors (61756695).

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

55453545 is a wasteful number, since it uses less digits than its factorization.

55453545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212 (or 199 counting only the distinct ones).

The product of its digits is 150000, while the sum is 36.

The square root of 55453545 is about 7446.7137047157. The cubic root of 55453545 is about 381.3377252219.

The spelling of 55453545 in words is "fifty-five million, four hundred fifty-three thousand, five hundred forty-five".