54161631 has 12 divisors (see below), whose sum is σ = 78629200. Its totient is φ = 35925120.

The previous prime is 54161603. The next prime is 54161633. The reversal of 54161631 is 13616145.

54161631 is a `hidden beast` number, since 5 + 41 + 616 + 3 + 1 = 666.

It is not a de Polignac number, because 54161631 - 2¹¹ = 54159583 is a prime.

It is a super-2 number, since 2×54161631² = 5866964545160322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54161595 and 54161604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54161633) 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, 13330 + ... + 16911.

Almost surely, 2^54161631 is an apocalyptic number.

54161631 is a deficient number, since it is larger than the sum of its proper divisors (24467569).

54161631 is a wasteful number, since it uses less digits than its factorization.

54161631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30446 (or 30443 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 54161631 is about 7359.4586078053. The cubic root of 54161631 is about 378.3530547054.

Adding to 54161631 its reverse (13616145), we get a palindrome (67777776).

The spelling of 54161631 in words is "fifty-four million, one hundred sixty-one thousand, six hundred thirty-one".