45257899 has 4 divisors (see below), whose sum is σ = 45282664. Its totient is φ = 45233136.

The previous prime is 45257873. The next prime is 45257903. The reversal of 45257899 is 99875254.

45257899 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99875254 = 2 ⋅49937627.

It is a cyclic number.

It is not a de Polignac number, because 45257899 - 2¹¹ = 45255851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45257869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9402 + ... + 13375.

It is an arithmetic number, because the mean of its divisors is an integer number (11320666).

Almost surely, 2^45257899 is an apocalyptic number.

45257899 is a deficient number, since it is larger than the sum of its proper divisors (24765).

45257899 is a wasteful number, since it uses less digits than its factorization.

45257899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24764.

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

The square root of 45257899 is about 6727.3991259624. The cubic root of 45257899 is about 356.3675322060.

The spelling of 45257899 in words is "forty-five million, two hundred fifty-seven thousand, eight hundred ninety-nine".