45515542 has 4 divisors (see below), whose sum is σ = 68273316. Its totient is φ = 22757770.

The previous prime is 45515539. The next prime is 45515563. The reversal of 45515542 is 24551554.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11378884 + ... + 11378887.

It is an arithmetic number, because the mean of its divisors is an integer number (17068329).

Almost surely, 2^45515542 is an apocalyptic number.

45515542 is a deficient number, since it is larger than the sum of its proper divisors (22757774).

45515542 is a wasteful number, since it uses less digits than its factorization.

45515542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22757773.

The product of its digits is 20000, while the sum is 31.

The square root of 45515542 is about 6746.5207329408. The cubic root of 45515542 is about 357.0424929869.

The spelling of 45515542 in words is "forty-five million, five hundred fifteen thousand, five hundred forty-two".