54567321 has 4 divisors (see below), whose sum is σ = 72756432. Its totient is φ = 36378212.

The previous prime is 54567319. The next prime is 54567349. The reversal of 54567321 is 12376545.

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 54567321 - 2¹ = 54567319 is a prime.

It is a super-2 number, since 2×54567321² = 5955185042234082, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (54567311) 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, 9094551 + ... + 9094556.

It is an arithmetic number, because the mean of its divisors is an integer number (18189108).

Almost surely, 2^54567321 is an apocalyptic number.

It is an amenable number.

54567321 is a deficient number, since it is larger than the sum of its proper divisors (18189111).

54567321 is a wasteful number, since it uses less digits than its factorization.

54567321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18189110.

The product of its digits is 25200, while the sum is 33.

The square root of 54567321 is about 7386.9696763964. The cubic root of 54567321 is about 379.2953724373.

The spelling of 54567321 in words is "fifty-four million, five hundred sixty-seven thousand, three hundred twenty-one".