52248557 has 2 divisors, whose sum is σ = 52248558. Its totient is φ = 52248556.

The previous prime is 52248541. The next prime is 52248563. The reversal of 52248557 is 75584225.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51638596 + 609961 = 7186^2 + 781^2 .

It is a cyclic number.

It is not a de Polignac number, because 52248557 - 2⁴ = 52248541 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52248557.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52248587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26124278 + 26124279.

It is an arithmetic number, because the mean of its divisors is an integer number (26124279).

Almost surely, 2^52248557 is an apocalyptic number.

It is an amenable number.

52248557 is a deficient number, since it is larger than the sum of its proper divisors (1).

52248557 is an equidigital number, since it uses as much as digits as its factorization.

52248557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 112000, while the sum is 38.

The square root of 52248557 is about 7228.3163323142. The cubic root of 52248557 is about 373.8448769025.

The spelling of 52248557 in words is "fifty-two million, two hundred forty-eight thousand, five hundred fifty-seven".