54220087 has 2 divisors, whose sum is σ = 54220088. Its totient is φ = 54220086.

The previous prime is 54220031. The next prime is 54220139. The reversal of 54220087 is 78002245.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54220087 - 2¹⁵ = 54187319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54220687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27110043 + 27110044.

It is an arithmetic number, because the mean of its divisors is an integer number (27110044).

Almost surely, 2^54220087 is an apocalyptic number.

54220087 is a deficient number, since it is larger than the sum of its proper divisors (1).

54220087 is an equidigital number, since it uses as much as digits as its factorization.

54220087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 54220087 is about 7363.4290245782. The cubic root of 54220087 is about 378.4891230725.

The spelling of 54220087 in words is "fifty-four million, two hundred twenty thousand, eighty-seven".