54472561 has 16 divisors (see below), whose sum is σ = 64407168. Its totient is φ = 45417600.

The previous prime is 54472553. The next prime is 54472567. The reversal of 54472561 is 16527445.

It is a cyclic number.

It is not a de Polignac number, because 54472561 - 2³ = 54472553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54472567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22741 + ... + 25021.

It is an arithmetic number, because the mean of its divisors is an integer number (4025448).

Almost surely, 2^54472561 is an apocalyptic number.

It is an amenable number.

54472561 is a deficient number, since it is larger than the sum of its proper divisors (9934607).

54472561 is a wasteful number, since it uses less digits than its factorization.

54472561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2472.

The product of its digits is 33600, while the sum is 34.

The square root of 54472561 is about 7380.5528925684. The cubic root of 54472561 is about 379.0756875037.

Subtracting from 54472561 its reverse (16527445), we obtain a triangular number (37945116 = T₈₇₁₁).

It can be divided in two parts, 5447 and 2561, that added together give a palindrome (8008).

The spelling of 54472561 in words is "fifty-four million, four hundred seventy-two thousand, five hundred sixty-one".