54431140 has 12 divisors (see below), whose sum is σ = 114305436. Its totient is φ = 21772448.

The previous prime is 54431137. The next prime is 54431141. The reversal of 54431140 is 4113445.

It can be written as a sum of positive squares in 2 ways, for example, as 5654884 + 48776256 = 2378^2 + 6984^2 .

It is not an unprimeable number, because it can be changed into a prime (54431141) 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, 1360759 + ... + 1360798.

It is an arithmetic number, because the mean of its divisors is an integer number (9525453).

Almost surely, 2^54431140 is an apocalyptic number.

It is an amenable number.

54431140 is an abundant number, since it is smaller than the sum of its proper divisors (59874296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54431140 is a wasteful number, since it uses less digits than its factorization.

54431140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2721566 (or 2721564 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 54431140 is about 7377.7462683397. The cubic root of 54431140 is about 378.9795799387.

Adding to 54431140 its reverse (4113445), we get a palindrome (58544585).

It can be divided in two parts, 544 and 31140, that added together give a square (31684 = 178²).

The spelling of 54431140 in words is "fifty-four million, four hundred thirty-one thousand, one hundred forty".