54140222531 has 4 divisors (see below), whose sum is σ = 54140691672. Its totient is φ = 54139753392.

The previous prime is 54140222527. The next prime is 54140222533. The reversal of 54140222531 is 13522204145.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 54140222531 - 2² = 54140222527 is a prime.

It is a super-2 number, since 2×54140222531² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54140222494 and 54140222503.

It is not an unprimeable number, because it can be changed into a prime (54140222533) 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, 72716 + ... + 336998.

It is an arithmetic number, because the mean of its divisors is an integer number (13535172918).

Almost surely, 2^54140222531 is an apocalyptic number.

54140222531 is a deficient number, since it is larger than the sum of its proper divisors (469141).

54140222531 is a wasteful number, since it uses less digits than its factorization.

54140222531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469140.

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 54140222531 its reverse (13522204145), we get a palindrome (67662426676).

The spelling of 54140222531 in words is "fifty-four billion, one hundred forty million, two hundred twenty-two thousand, five hundred thirty-one".