45525645 has 60 divisors (see below), whose sum is σ = 89798940. Its totient is φ = 22049280.

The previous prime is 45525527. The next prime is 45525659. The reversal of 45525645 is 54652554.

45525645 is a `hidden beast` number, since 4 + 5 + 5 + 2 + 5 + 645 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 6625476 + 38900169 = 2574^2 + 6237^2 .

It is not a de Polignac number, because 45525645 - 2¹⁰ = 45524621 is a prime.

It is a super-3 number, since 3×45525645³ (a number of 24 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 48541 + ... + 49469.

It is an arithmetic number, because the mean of its divisors is an integer number (1496649).

Almost surely, 2^45525645 is an apocalyptic number.

45525645 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

45525645 is a deficient number, since it is larger than the sum of its proper divisors (44273295).

45525645 is a wasteful number, since it uses less digits than its factorization.

45525645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 968 (or 948 counting only the distinct ones).

The product of its digits is 120000, while the sum is 36.

The square root of 45525645 is about 6747.2694477099. The cubic root of 45525645 is about 357.0689083847.

The spelling of 45525645 in words is "forty-five million, five hundred twenty-five thousand, six hundred forty-five".