45515541 has 4 divisors (see below), whose sum is σ = 60687392. Its totient is φ = 30343692.

The previous prime is 45515539. The next prime is 45515563. The reversal of 45515541 is 14551554.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 45515541 - 2¹ = 45515539 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45515499 and 45515508.

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, 7585921 + ... + 7585926.

It is an arithmetic number, because the mean of its divisors is an integer number (15171848).

Almost surely, 2^45515541 is an apocalyptic number.

It is an amenable number.

45515541 is a deficient number, since it is larger than the sum of its proper divisors (15171851).

45515541 is a wasteful number, since it uses less digits than its factorization.

45515541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15171850.

The product of its digits is 10000, while the sum is 30.

The square root of 45515541 is about 6746.5206588285. The cubic root of 45515541 is about 357.0424903721.

It can be divided in two parts, 45515 and 541, that added together give a triangular number (46056 = T₃₀₃).

The spelling of 45515541 in words is "forty-five million, five hundred fifteen thousand, five hundred forty-one".