45899257 has 6 divisors (see below), whose sum is σ = 47537438. Its totient is φ = 44315712.

The previous prime is 45899239. The next prime is 45899281. The reversal of 45899257 is 75299854.

It can be written as a sum of positive squares in 3 ways, for example, as 7595536 + 38303721 = 2756^2 + 6189^2 .

It is not a de Polignac number, because 45899257 - 2¹¹ = 45897209 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45899257.

It is not an unprimeable number, because it can be changed into a prime (45899057) 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 in 5 ways as a sum of consecutive naturals, for example, 26448 + ... + 28129.

Almost surely, 2^45899257 is an apocalyptic number.

It is an amenable number.

45899257 is a deficient number, since it is larger than the sum of its proper divisors (1638181).

45899257 is an equidigital number, since it uses as much as digits as its factorization.

45899257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54635 (or 54606 counting only the distinct ones).

The product of its digits is 907200, while the sum is 49.

The square root of 45899257 is about 6774.8990398382. The cubic root of 45899257 is about 358.0430256331.

The spelling of 45899257 in words is "forty-five million, eight hundred ninety-nine thousand, two hundred fifty-seven".