55115351 has 4 divisors (see below), whose sum is σ = 55303752. Its totient is φ = 54926952.

The previous prime is 55115329. The next prime is 55115363. The reversal of 55115351 is 15351155.

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

It is not a de Polignac number, because 55115351 - 2⁶ = 55115287 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55115351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55115651) 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, 93761 + ... + 94346.

It is an arithmetic number, because the mean of its divisors is an integer number (13825938).

Almost surely, 2^55115351 is an apocalyptic number.

55115351 is a deficient number, since it is larger than the sum of its proper divisors (188401).

55115351 is a wasteful number, since it uses less digits than its factorization.

55115351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188400.

The product of its digits is 1875, while the sum is 26.

The square root of 55115351 is about 7423.9713765612. The cubic root of 55115351 is about 380.5609236823.

The spelling of 55115351 in words is "fifty-five million, one hundred fifteen thousand, three hundred fifty-one".