45509756 has 12 divisors (see below), whose sum is σ = 80224368. Its totient is φ = 22588512.

The previous prime is 45509749. The next prime is 45509759. The reversal of 45509756 is 65790554.

It is a super-2 number, since 2×45509756² = 4142275782359072, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45509759) 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, 40976 + ... + 42071.

It is an arithmetic number, because the mean of its divisors is an integer number (6685364).

Almost surely, 2^45509756 is an apocalyptic number.

It is an amenable number.

45509756 is a deficient number, since it is larger than the sum of its proper divisors (34714612).

45509756 is a wasteful number, since it uses less digits than its factorization.

45509756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83188 (or 83186 counting only the distinct ones).

The product of its (nonzero) digits is 189000, while the sum is 41.

The square root of 45509756 is about 6746.0919056888. The cubic root of 45509756 is about 357.0273630971.

The spelling of 45509756 in words is "forty-five million, five hundred nine thousand, seven hundred fifty-six".