55415204 has 12 divisors (see below), whose sum is σ = 104436444. Its totient is φ = 25576224.

The previous prime is 55415179. The next prime is 55415207. The reversal of 55415204 is 40251455.

It can be written as a sum of positive squares in 2 ways, for example, as 14455204 + 40960000 = 3802^2 + 6400^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (55415207) 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, 532787 + ... + 532890.

It is an arithmetic number, because the mean of its divisors is an integer number (8703037).

Almost surely, 2^55415204 is an apocalyptic number.

It is an amenable number.

55415204 is a deficient number, since it is larger than the sum of its proper divisors (49021240).

55415204 is a wasteful number, since it uses less digits than its factorization.

55415204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065694 (or 1065692 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 55415204 is about 7444.1389025192. The cubic root of 55415204 is about 381.2498183642.

Adding to 55415204 its reverse (40251455), we get a palindrome (95666659).

The spelling of 55415204 in words is "fifty-five million, four hundred fifteen thousand, two hundred four".