55975315 has 16 divisors (see below), whose sum is σ = 73956960. Its totient is φ = 40331520.

The previous prime is 55975313. The next prime is 55975319. The reversal of 55975315 is 51357955.

It is not a de Polignac number, because 55975315 - 2¹ = 55975313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55975313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1327 + ... + 10663.

It is an arithmetic number, because the mean of its divisors is an integer number (4622310).

Almost surely, 2^55975315 is an apocalyptic number.

55975315 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55975315 is a deficient number, since it is larger than the sum of its proper divisors (17981645).

55975315 is a wasteful number, since it uses less digits than its factorization.

55975315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9462.

The product of its digits is 118125, while the sum is 40.

The square root of 55975315 is about 7481.6652558104. The cubic root of 55975315 is about 382.5300131660.

The spelling of 55975315 in words is "fifty-five million, nine hundred seventy-five thousand, three hundred fifteen".