45002557 has 2 divisors, whose sum is σ = 45002558. Its totient is φ = 45002556.

The previous prime is 45002549. The next prime is 45002563. The reversal of 45002557 is 75520054.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41396356 + 3606201 = 6434^2 + 1899^2 .

It is a cyclic number.

It is not a de Polignac number, because 45002557 - 2³ = 45002549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45002527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22501278 + 22501279.

It is an arithmetic number, because the mean of its divisors is an integer number (22501279).

Almost surely, 2^45002557 is an apocalyptic number.

It is an amenable number.

45002557 is a deficient number, since it is larger than the sum of its proper divisors (1).

45002557 is an equidigital number, since it uses as much as digits as its factorization.

45002557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7000, while the sum is 28.

The square root of 45002557 is about 6708.3945173193. The cubic root of 45002557 is about 355.6960673408.

The spelling of 45002557 in words is "forty-five million, two thousand, five hundred fifty-seven".