55415433 has 16 divisors (see below), whose sum is σ = 78217920. Its totient is φ = 34837824.

The previous prime is 55415431. The next prime is 55415453. The reversal of 55415433 is 33451455.

It is not a de Polignac number, because 55415433 - 2¹ = 55415431 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55415433.

It is not an unprimeable number, because it can be changed into a prime (55415431) 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, 3666 + ... + 11147.

It is an arithmetic number, because the mean of its divisors is an integer number (4888620).

Almost surely, 2^55415433 is an apocalyptic number.

It is an amenable number.

55415433 is a deficient number, since it is larger than the sum of its proper divisors (22802487).

55415433 is a wasteful number, since it uses less digits than its factorization.

55415433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14888.

The product of its digits is 18000, while the sum is 30.

The square root of 55415433 is about 7444.1542837316. The cubic root of 55415433 is about 381.2503435274.

Adding to 55415433 its reverse (33451455), we get a palindrome (88866888).

The spelling of 55415433 in words is "fifty-five million, four hundred fifteen thousand, four hundred thirty-three".