45518519 has 2 divisors, whose sum is σ = 45518520. Its totient is φ = 45518518.

The previous prime is 45518507. The next prime is 45518531. The reversal of 45518519 is 91581554.

It is a balanced prime because it is at equal distance from previous prime (45518507) and next prime (45518531).

It is a cyclic number.

It is not a de Polignac number, because 45518519 - 2²⁴ = 28741303 is a prime.

It is a super-2 number, since 2×45518519² = 4143871143906722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45518119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22759259 + 22759260.

It is an arithmetic number, because the mean of its divisors is an integer number (22759260).

Almost surely, 2^45518519 is an apocalyptic number.

45518519 is a deficient number, since it is larger than the sum of its proper divisors (1).

45518519 is an equidigital number, since it uses as much as digits as its factorization.

45518519 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36000, while the sum is 38.

The square root of 45518519 is about 6746.7413615760. The cubic root of 45518519 is about 357.0502770850.

The spelling of 45518519 in words is "forty-five million, five hundred eighteen thousand, five hundred nineteen".