54220493 has 2 divisors, whose sum is σ = 54220494. Its totient is φ = 54220492.

The previous prime is 54220477. The next prime is 54220501. The reversal of 54220493 is 39402245.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54213769 + 6724 = 7363^2 + 82^2 .

It is a cyclic number.

It is not a de Polignac number, because 54220493 - 2⁴ = 54220477 is a prime.

It is a super-2 number, since 2×54220493² = 5879723722326098, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54220403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27110246 + 27110247.

It is an arithmetic number, because the mean of its divisors is an integer number (27110247).

Almost surely, 2^54220493 is an apocalyptic number.

It is an amenable number.

54220493 is a deficient number, since it is larger than the sum of its proper divisors (1).

54220493 is an equidigital number, since it uses as much as digits as its factorization.

54220493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 54220493 is about 7363.4565932040. The cubic root of 54220493 is about 378.4900677789.

The spelling of 54220493 in words is "fifty-four million, two hundred twenty thousand, four hundred ninety-three".