54535020431 has 4 divisors (see below), whose sum is σ = 54538996632. Its totient is φ = 54531044232.

The previous prime is 54535020413. The next prime is 54535020461. The reversal of 54535020431 is 13402053545.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13402053545 = 5 ⋅2680410709.

It is a cyclic number.

It is not a de Polignac number, because 54535020431 - 2⁶ = 54535020367 is a prime.

It is a super-2 number, since 2×54535020431² (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 (54535020461) 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, 1967456 + ... + 1994981.

It is an arithmetic number, because the mean of its divisors is an integer number (13634749158).

Almost surely, 2^54535020431 is an apocalyptic number.

54535020431 is a deficient number, since it is larger than the sum of its proper divisors (3976201).

54535020431 is a wasteful number, since it uses less digits than its factorization.

54535020431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3976200.

The product of its (nonzero) digits is 36000, while the sum is 32.

Adding to 54535020431 its reverse (13402053545), we get a palindrome (67937073976).

The spelling of 54535020431 in words is "fifty-four billion, five hundred thirty-five million, twenty thousand, four hundred thirty-one".