55149315 has 32 divisors (see below), whose sum is σ = 95462976. Its totient is φ = 27025920.

The previous prime is 55149293. The next prime is 55149317. The reversal of 55149315 is 51394155.

It is not a de Polignac number, because 55149315 - 2⁶ = 55149251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55149317) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53505 + ... + 54525.

It is an arithmetic number, because the mean of its divisors is an integer number (2983218).

Almost surely, 2^55149315 is an apocalyptic number.

55149315 is a deficient number, since it is larger than the sum of its proper divisors (40313661).

55149315 is a wasteful number, since it uses less digits than its factorization.

55149315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1319.

The product of its digits is 13500, while the sum is 33.

The square root of 55149315 is about 7426.2584792074. The cubic root of 55149315 is about 380.6390792649.

The spelling of 55149315 in words is "fifty-five million, one hundred forty-nine thousand, three hundred fifteen".