55741231 has 32 divisors (see below), whose sum is σ = 73149440. Its totient is φ = 41243904.

The previous prime is 55741229. The next prime is 55741237. The reversal of 55741231 is 13214755.

It is a happy number.

It is not a de Polignac number, because 55741231 - 2¹ = 55741229 is a prime.

It is a super-2 number, since 2×55741231² = 6214169666790722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55741231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55741237) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 177931 + ... + 178243.

It is an arithmetic number, because the mean of its divisors is an integer number (2285920).

Almost surely, 2^55741231 is an apocalyptic number.

55741231 is the 4311-st hex number.

55741231 is a deficient number, since it is larger than the sum of its proper divisors (17408209).

55741231 is a wasteful number, since it uses less digits than its factorization.

55741231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455.

The product of its digits is 4200, while the sum is 28.

The square root of 55741231 is about 7466.0050227682. The cubic root of 55741231 is about 381.9960321399.

Adding to 55741231 its reverse (13214755), we get a palindrome (68955986).

The spelling of 55741231 in words is "fifty-five million, seven hundred forty-one thousand, two hundred thirty-one".