45448519 has 4 divisors (see below), whose sum is σ = 45554400. Its totient is φ = 45342640.

The previous prime is 45448499. The next prime is 45448537. The reversal of 45448519 is 91584454.

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

It is a cyclic number.

It is not a de Polignac number, because 45448519 - 2²⁵ = 11894087 is a prime.

It is a super-2 number, since 2×45448519² = 4131135758586722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45448619) 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, 52294 + ... + 53155.

It is an arithmetic number, because the mean of its divisors is an integer number (11388600).

Almost surely, 2^45448519 is an apocalyptic number.

45448519 is a deficient number, since it is larger than the sum of its proper divisors (105881).

45448519 is a wasteful number, since it uses less digits than its factorization.

45448519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105880.

The product of its digits is 115200, while the sum is 40.

The square root of 45448519 is about 6741.5516759868. The cubic root of 45448519 is about 356.8671549706.

The spelling of 45448519 in words is "forty-five million, four hundred forty-eight thousand, five hundred nineteen".