55552015 has 8 divisors (see below), whose sum is σ = 69560928. Its totient is φ = 42509280.

The previous prime is 55551989. The next prime is 55552027. The reversal of 55552015 is 51025555.

It is a happy number.

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

It is not a de Polignac number, because 55552015 - 2⁷ = 55551887 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 7 ways as a sum of consecutive naturals, for example, 241416 + ... + 241645.

It is an arithmetic number, because the mean of its divisors is an integer number (8695116).

Almost surely, 2^55552015 is an apocalyptic number.

55552015 is a deficient number, since it is larger than the sum of its proper divisors (14008913).

55552015 is a wasteful number, since it uses less digits than its factorization.

55552015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483089.

The product of its (nonzero) digits is 6250, while the sum is 28.

The square root of 55552015 is about 7453.3224135281. The cubic root of 55552015 is about 381.5633081635.

The spelling of 55552015 in words is "fifty-five million, five hundred fifty-two thousand, fifteen".