55502151 has 24 divisors (see below), whose sum is σ = 79340016. Its totient is φ = 34488960.

The previous prime is 55502147. The next prime is 55502177. The reversal of 55502151 is 15120555.

It is not a de Polignac number, because 55502151 - 2² = 55502147 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55502101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64641 + ... + 65493.

It is an arithmetic number, because the mean of its divisors is an integer number (3305834).

Almost surely, 2^55502151 is an apocalyptic number.

55502151 is a deficient number, since it is larger than the sum of its proper divisors (23837865).

55502151 is a wasteful number, since it uses less digits than its factorization.

55502151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 943 (or 920 counting only the distinct ones).

The product of its (nonzero) digits is 1250, while the sum is 24.

The square root of 55502151 is about 7449.9765771444. The cubic root of 55502151 is about 381.4491090754.

The spelling of 55502151 in words is "fifty-five million, five hundred two thousand, one hundred fifty-one".