45515501 has 4 divisors (see below), whose sum is σ = 45704604. Its totient is φ = 45326400.

The previous prime is 45515461. The next prime is 45515531. The reversal of 45515501 is 10551554.

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 29920900 + 15594601 = 5470^2 + 3949^2 .

It is a cyclic number.

It is not a de Polignac number, because 45515501 - 2²² = 41321197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45515531) 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, 94190 + ... + 94671.

It is an arithmetic number, because the mean of its divisors is an integer number (11426151).

Almost surely, 2^45515501 is an apocalyptic number.

It is an amenable number.

45515501 is a deficient number, since it is larger than the sum of its proper divisors (189103).

45515501 is a wasteful number, since it uses less digits than its factorization.

45515501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189102.

The product of its (nonzero) digits is 2500, while the sum is 26.

The square root of 45515501 is about 6746.5176943368. The cubic root of 45515501 is about 357.0423857800.

The spelling of 45515501 in words is "forty-five million, five hundred fifteen thousand, five hundred one".