45615540 has 48 divisors (see below), whose sum is σ = 128298240. Its totient is φ = 12109440.

The previous prime is 45615527. The next prime is 45615541. The reversal of 45615540 is 4551654.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 45615498 and 45615507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45615541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12750 + ... + 15930.

It is an arithmetic number, because the mean of its divisors is an integer number (2672880).

Almost surely, 2^45615540 is an apocalyptic number.

It is an amenable number.

45615540 is an abundant number, since it is smaller than the sum of its proper divisors (82682700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45615540 is a wasteful number, since it uses less digits than its factorization.

45615540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3432 (or 3430 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 45615540 is about 6753.9277461341. The cubic root of 45615540 is about 357.3037767780.

It can be divided in two parts, 4561 and 5540, that added together give a palindrome (10101).

The spelling of 45615540 in words is "forty-five million, six hundred fifteen thousand, five hundred forty".