54225557 has 2 divisors, whose sum is σ = 54225558. Its totient is φ = 54225556.

The previous prime is 54225551. The next prime is 54225569. The reversal of 54225557 is 75552245.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54037201 + 188356 = 7351^2 + 434^2 .

It is a cyclic number.

It is not a de Polignac number, because 54225557 - 2¹⁶ = 54160021 is a prime.

It is a super-2 number, since 2×54225557² = 5880822063920498, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54225551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27112778 + 27112779.

It is an arithmetic number, because the mean of its divisors is an integer number (27112779).

Almost surely, 2^54225557 is an apocalyptic number.

It is an amenable number.

54225557 is a deficient number, since it is larger than the sum of its proper divisors (1).

54225557 is an equidigital number, since it uses as much as digits as its factorization.

54225557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 70000, while the sum is 35.

The square root of 54225557 is about 7363.8004454222. The cubic root of 54225557 is about 378.5018506180.

The spelling of 54225557 in words is "fifty-four million, two hundred twenty-five thousand, five hundred fifty-seven".