54243431650 has 24 divisors (see below), whose sum is σ = 101415561444. Its totient is φ = 21584947200.

The previous prime is 54243431639. The next prime is 54243431659. The reversal of 54243431650 is 5613434245.

It can be written as a sum of positive squares in 6 ways, for example, as 4070567601 + 50172864049 = 63801^2 + 223993^2 .

It is not an unprimeable number, because it can be changed into a prime (54243431659) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2800891 + ... + 2820190.

Almost surely, 2^54243431650 is an apocalyptic number.

54243431650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

54243431650 is a deficient number, since it is larger than the sum of its proper divisors (47172129794).

54243431650 is a wasteful number, since it uses less digits than its factorization.

54243431650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5621286 (or 5621281 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 37.

Adding to 54243431650 its reverse (5613434245), we get a palindrome (59856865895).

The spelling of 54243431650 in words is "fifty-four billion, two hundred forty-three million, four hundred thirty-one thousand, six hundred fifty".