55415275 has 6 divisors (see below), whose sum is σ = 68714972. Its totient is φ = 44332200.

The previous prime is 55415251. The next prime is 55415279. The reversal of 55415275 is 57251455.

It is not a de Polignac number, because 55415275 - 2¹¹ = 55413227 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 55415275.

It is not an unprimeable number, because it can be changed into a prime (55415279) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1108281 + ... + 1108330.

Almost surely, 2^55415275 is an apocalyptic number.

55415275 is a deficient number, since it is larger than the sum of its proper divisors (13299697).

55415275 is a wasteful number, since it uses less digits than its factorization.

55415275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2216621 (or 2216616 counting only the distinct ones).

The product of its digits is 35000, while the sum is 34.

The square root of 55415275 is about 7444.1436713701. The cubic root of 55415275 is about 381.2499811879.

It can be divided in two parts, 5541 and 5275, that added together give a square (10816 = 104²).

The spelling of 55415275 in words is "fifty-five million, four hundred fifteen thousand, two hundred seventy-five".