55524431 has 4 divisors (see below), whose sum is σ = 58790592. Its totient is φ = 52258272.

The previous prime is 55524421. The next prime is 55524433. The reversal of 55524431 is 13442555.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 55524431 - 2⁶ = 55524367 is a prime.

It is a super-2 number, since 2×55524431² = 6165924875747522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55524394 and 55524403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55524433) 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, 1633055 + ... + 1633088.

It is an arithmetic number, because the mean of its divisors is an integer number (14697648).

Almost surely, 2^55524431 is an apocalyptic number.

55524431 is a deficient number, since it is larger than the sum of its proper divisors (3266161).

55524431 is a wasteful number, since it uses less digits than its factorization.

55524431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3266160.

The product of its digits is 12000, while the sum is 29.

The square root of 55524431 is about 7451.4717338255. The cubic root of 55524431 is about 381.5001434291.

Adding to 55524431 its reverse (13442555), we get a palindrome (68966986).

It can be divided in two parts, 55524 and 431, that added together give a palindrome (55955).

The spelling of 55524431 in words is "fifty-five million, five hundred twenty-four thousand, four hundred thirty-one".