55145365 has 16 divisors (see below), whose sum is σ = 76438080. Its totient is φ = 37745920.

The previous prime is 55145359. The next prime is 55145401. The reversal of 55145365 is 56354155.

It is not a de Polignac number, because 55145365 - 2⁵ = 55145333 is a prime.

It is a super-2 number, since 2×55145365² = 6082022561966450, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55145365.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28555 + ... + 30424.

It is an arithmetic number, because the mean of its divisors is an integer number (4777380).

Almost surely, 2^55145365 is an apocalyptic number.

55145365 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55145365 is a deficient number, since it is larger than the sum of its proper divisors (21292715).

55145365 is a wasteful number, since it uses less digits than its factorization.

55145365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59012.

The product of its digits is 45000, while the sum is 34.

The square root of 55145365 is about 7425.9925262553. The cubic root of 55145365 is about 380.6299914502.

The spelling of 55145365 in words is "fifty-five million, one hundred forty-five thousand, three hundred sixty-five".