55231534 has 4 divisors (see below), whose sum is σ = 82847304. Its totient is φ = 27615766.

The previous prime is 55231489. The next prime is 55231549. The reversal of 55231534 is 43513255.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13807882 + ... + 13807885.

It is an arithmetic number, because the mean of its divisors is an integer number (20711826).

Almost surely, 2^55231534 is an apocalyptic number.

55231534 is a deficient number, since it is larger than the sum of its proper divisors (27615770).

55231534 is a wasteful number, since it uses less digits than its factorization.

55231534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27615769.

The product of its digits is 9000, while the sum is 28.

The square root of 55231534 is about 7431.7921122701. The cubic root of 55231534 is about 380.8281431119.

Adding to 55231534 its reverse (43513255), we get a palindrome (98744789).

The spelling of 55231534 in words is "fifty-five million, two hundred thirty-one thousand, five hundred thirty-four".