53455545 has 120 divisors (see below), whose sum is σ = 114789312. Its totient is φ = 23587200.

The previous prime is 53455537. The next prime is 53455547. The reversal of 53455545 is 54555435.

It is not a de Polignac number, because 53455545 - 2³ = 53455537 is a prime.

Its product of digits (150000) is a multiple of the sum of its prime factors (125).

It is not an unprimeable number, because it can be changed into a prime (53455547) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 752860 + ... + 752930.

Almost surely, 2^53455545 is an apocalyptic number.

53455545 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

53455545 is an abundant number, since it is smaller than the sum of its proper divisors (61333767).

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

53455545 is a wasteful number, since it uses less digits than its factorization.

53455545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125 (or 103 counting only the distinct ones).

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

The square root of 53455545 is about 7311.3299063850. The cubic root of 53455545 is about 376.7017061755.

The spelling of 53455545 in words is "fifty-three million, four hundred fifty-five thousand, five hundred forty-five".