45808657 has 4 divisors (see below), whose sum is σ = 45886500. Its totient is φ = 45730816.

The previous prime is 45808643. The next prime is 45808673. The reversal of 45808657 is 75680854.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9339136 + 36469521 = 3056^2 + 6039^2 .

It is a cyclic number.

It is not a de Polignac number, because 45808657 - 2¹⁵ = 45775889 is a prime.

It is a super-2 number, since 2×45808657² = 4196866112287298, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45808687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38032 + ... + 39217.

It is an arithmetic number, because the mean of its divisors is an integer number (11471625).

Almost surely, 2^45808657 is an apocalyptic number.

It is an amenable number.

45808657 is a deficient number, since it is larger than the sum of its proper divisors (77843).

45808657 is an equidigital number, since it uses as much as digits as its factorization.

45808657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77842.

The product of its (nonzero) digits is 268800, while the sum is 43.

The square root of 45808657 is about 6768.2092904992. The cubic root of 45808657 is about 357.8072914976.

The spelling of 45808657 in words is "forty-five million, eight hundred eight thousand, six hundred fifty-seven".