54053661 has 4 divisors (see below), whose sum is σ = 72071552. Its totient is φ = 36035772.

The previous prime is 54053641. The next prime is 54053683. The reversal of 54053661 is 16635045.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 54053661 - 2⁷ = 54053533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54053641) 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, 9008941 + ... + 9008946.

It is an arithmetic number, because the mean of its divisors is an integer number (18017888).

Almost surely, 2^54053661 is an apocalyptic number.

It is an amenable number.

54053661 is a deficient number, since it is larger than the sum of its proper divisors (18017891).

54053661 is a wasteful number, since it uses less digits than its factorization.

54053661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18017890.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 54053661 is about 7352.1194903239. The cubic root of 54053661 is about 378.1014746742.

The spelling of 54053661 in words is "fifty-four million, fifty-three thousand, six hundred sixty-one".