54561153431 has 4 divisors (see below), whose sum is σ = 54709821792. Its totient is φ = 54412485072.

The previous prime is 54561153397. The next prime is 54561153473. The reversal of 54561153431 is 13435116545.

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

It is a cyclic number.

It is not a de Polignac number, because 54561153431 - 2¹⁰ = 54561152407 is a prime.

It is a super-2 number, since 2×54561153431² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53561153431) 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, 74333630 + ... + 74334363.

It is an arithmetic number, because the mean of its divisors is an integer number (13677455448).

Almost surely, 2^54561153431 is an apocalyptic number.

54561153431 is a deficient number, since it is larger than the sum of its proper divisors (148668361).

54561153431 is a wasteful number, since it uses less digits than its factorization.

54561153431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148668360.

The product of its digits is 108000, while the sum is 38.

Adding to 54561153431 its reverse (13435116545), we get a palindrome (67996269976).

The spelling of 54561153431 in words is "fifty-four billion, five hundred sixty-one million, one hundred fifty-three thousand, four hundred thirty-one".