45532530 has 80 divisors (see below), whose sum is σ = 124407360. Its totient is φ = 11946528.

The previous prime is 45532507. The next prime is 45532547. The reversal of 45532530 is 3523554.

It is a super-2 number, since 2×45532530² = 4146422576401800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 45532494 and 45532503.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 53851 + ... + 54689.

It is an arithmetic number, because the mean of its divisors is an integer number (1555092).

Almost surely, 2^45532530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45532530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62203680).

45532530 is an abundant number, since it is smaller than the sum of its proper divisors (78874830).

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

45532530 is a wasteful number, since it uses less digits than its factorization.

45532530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 925 (or 916 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 27.

The square root of 45532530 is about 6747.7796348132. The cubic root of 45532530 is about 357.0869077308.

The spelling of 45532530 in words is "forty-five million, five hundred thirty-two thousand, five hundred thirty".