55182513 has 4 divisors (see below), whose sum is σ = 73576688. Its totient is φ = 36788340.

The previous prime is 55182481. The next prime is 55182529. The reversal of 55182513 is 31528155.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 55182513 - 2⁵ = 55182481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55182553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9197083 + ... + 9197088.

It is an arithmetic number, because the mean of its divisors is an integer number (18394172).

Almost surely, 2^55182513 is an apocalyptic number.

It is an amenable number.

55182513 is a deficient number, since it is larger than the sum of its proper divisors (18394175).

55182513 is a wasteful number, since it uses less digits than its factorization.

55182513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18394174.

The product of its digits is 6000, while the sum is 30.

The square root of 55182513 is about 7428.4933196443. The cubic root of 55182513 is about 380.7154411770.

The spelling of 55182513 in words is "fifty-five million, one hundred eighty-two thousand, five hundred thirteen".