55732013 has 4 divisors (see below), whose sum is σ = 58155168. Its totient is φ = 53308860.

The previous prime is 55732003. The next prime is 55732021. The reversal of 55732013 is 31023755.

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 a cyclic number.

It is not a de Polignac number, because 55732013 - 2¹⁰ = 55730989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55732003) 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, 1211543 + ... + 1211588.

It is an arithmetic number, because the mean of its divisors is an integer number (14538792).

Almost surely, 2^55732013 is an apocalyptic number.

It is an amenable number.

55732013 is a deficient number, since it is larger than the sum of its proper divisors (2423155).

55732013 is a wasteful number, since it uses less digits than its factorization.

55732013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2423154.

The product of its (nonzero) digits is 3150, while the sum is 26.

The square root of 55732013 is about 7465.3876657545. The cubic root of 55732013 is about 381.9749739185.

Adding to 55732013 its reverse (31023755), we get a palindrome (86755768).

The spelling of 55732013 in words is "fifty-five million, seven hundred thirty-two thousand, thirteen".