45503603 has 4 divisors (see below), whose sum is σ = 45578448. Its totient is φ = 45428760.

The previous prime is 45503597. The next prime is 45503617. The reversal of 45503603 is 30630554.

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

It is a cyclic number.

It is not a de Polignac number, because 45503603 - 2¹² = 45499507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45503663) 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, 36503 + ... + 37728.

It is an arithmetic number, because the mean of its divisors is an integer number (11394612).

Almost surely, 2^45503603 is an apocalyptic number.

45503603 is a deficient number, since it is larger than the sum of its proper divisors (74845).

45503603 is an equidigital number, since it uses as much as digits as its factorization.

45503603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74844.

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 45503603 is about 6745.6358484579. The cubic root of 45503603 is about 357.0112721269.

The spelling of 45503603 in words is "forty-five million, five hundred three thousand, six hundred three".