45115532 has 48 divisors (see below), whose sum is σ = 101848320. Its totient is φ = 16968000.

The previous prime is 45115513. The next prime is 45115559. The reversal of 45115532 is 23551154.

It is a super-2 number, since 2×45115532² = 4070822455286048, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6407 + ... + 11457.

It is an arithmetic number, because the mean of its divisors is an integer number (2121840).

Almost surely, 2^45115532 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45115532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50924160).

45115532 is an abundant number, since it is smaller than the sum of its proper divisors (56732788).

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

45115532 is a wasteful number, since it uses less digits than its factorization.

45115532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5102 (or 5100 counting only the distinct ones).

The product of its digits is 3000, while the sum is 26.

The square root of 45115532 is about 6716.8096593547. The cubic root of 45115532 is about 355.9934666141.

Adding to 45115532 its reverse (23551154), we get a palindrome (68666686).

The spelling of 45115532 in words is "forty-five million, one hundred fifteen thousand, five hundred thirty-two".