55552507 has 4 divisors (see below), whose sum is σ = 55742400. Its totient is φ = 55362616.

The previous prime is 55552493. The next prime is 55552531. The reversal of 55552507 is 70525555.

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 55552507 - 2¹¹ = 55550459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55552547) 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, 94507 + ... + 95092.

It is an arithmetic number, because the mean of its divisors is an integer number (13935600).

Almost surely, 2^55552507 is an apocalyptic number.

55552507 is a deficient number, since it is larger than the sum of its proper divisors (189893).

55552507 is a wasteful number, since it uses less digits than its factorization.

55552507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189892.

The product of its (nonzero) digits is 43750, while the sum is 34.

The square root of 55552507 is about 7453.3554188701. The cubic root of 55552507 is about 381.5644346068.

The spelling of 55552507 in words is "fifty-five million, five hundred fifty-two thousand, five hundred seven".