54210561 has 4 divisors (see below), whose sum is σ = 72280752. Its totient is φ = 36140372.

The previous prime is 54210547. The next prime is 54210577. The reversal of 54210561 is 16501245.

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 a cyclic number.

It is not a de Polignac number, because 54210561 - 2⁵ = 54210529 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (54210581) 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, 9035091 + ... + 9035096.

It is an arithmetic number, because the mean of its divisors is an integer number (18070188).

Almost surely, 2^54210561 is an apocalyptic number.

It is an amenable number.

54210561 is a deficient number, since it is larger than the sum of its proper divisors (18070191).

54210561 is a wasteful number, since it uses less digits than its factorization.

54210561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18070190.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 54210561 is about 7362.7821507906. The cubic root of 54210561 is about 378.4669560199.

The spelling of 54210561 in words is "fifty-four million, two hundred ten thousand, five hundred sixty-one".