45255519 has 6 divisors (see below), whose sum is σ = 65369096. Its totient is φ = 30170340.

The previous prime is 45255517. The next prime is 45255523. The reversal of 45255519 is 91555254.

It is not a de Polignac number, because 45255519 - 2¹ = 45255517 is a prime.

It is a super-2 number, since 2×45255519² = 4096123999918722, 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 (45255517) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2514187 + ... + 2514204.

Almost surely, 2^45255519 is an apocalyptic number.

45255519 is a deficient number, since it is larger than the sum of its proper divisors (20113577).

45255519 is a wasteful number, since it uses less digits than its factorization.

45255519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5028397 (or 5028394 counting only the distinct ones).

The product of its digits is 45000, while the sum is 36.

The square root of 45255519 is about 6727.2222350685. Note that the first 4 decimals coincide. The cubic root of 45255519 is about 356.3612852701.

The spelling of 45255519 in words is "forty-five million, two hundred fifty-five thousand, five hundred nineteen".