55182730 has 8 divisors (see below), whose sum is σ = 99328932. Its totient is φ = 22073088.

The previous prime is 55182709. The next prime is 55182733. The reversal of 55182730 is 3728155.

It can be written as a sum of positive squares in 2 ways, for example, as 54508689 + 674041 = 7383^2 + 821^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 55182692 and 55182701.

It is not an unprimeable number, because it can be changed into a prime (55182733) 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, 2759127 + ... + 2759146.

Almost surely, 2^55182730 is an apocalyptic number.

55182730 is a deficient number, since it is larger than the sum of its proper divisors (44146202).

55182730 is a wasteful number, since it uses less digits than its factorization.

55182730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5518280.

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 55182730 is about 7428.5079255527. The cubic root of 55182730 is about 380.7159402188.

The spelling of 55182730 in words is "fifty-five million, one hundred eighty-two thousand, seven hundred thirty".