55732015 has 4 divisors (see below), whose sum is σ = 66878424. Its totient is φ = 44585608.

The previous prime is 55732003. The next prime is 55732021. The reversal of 55732015 is 51023755.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55732015 - 2⁵ = 55731983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5573197 + ... + 5573206.

It is an arithmetic number, because the mean of its divisors is an integer number (16719606).

Almost surely, 2^55732015 is an apocalyptic number.

55732015 is a deficient number, since it is larger than the sum of its proper divisors (11146409).

55732015 is a wasteful number, since it uses less digits than its factorization.

55732015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11146408.

The product of its (nonzero) digits is 5250, while the sum is 28.

The square root of 55732015 is about 7465.3877997061. The cubic root of 55732015 is about 381.9749784877.

The spelling of 55732015 in words is "fifty-five million, seven hundred thirty-two thousand, fifteen".