45532531 has 8 divisors (see below), whose sum is σ = 52286400. Its totient is φ = 39214440.

The previous prime is 45532507. The next prime is 45532547. The reversal of 45532531 is 13523554.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 45532531 - 2¹⁷ = 45401459 is a prime.

It is a super-2 number, since 2×45532531² = 4146422758531922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45532531.

It is not an unprimeable number, because it can be changed into a prime (45532561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108721 + ... + 109138.

It is an arithmetic number, because the mean of its divisors is an integer number (6535800).

Almost surely, 2^45532531 is an apocalyptic number.

45532531 is a deficient number, since it is larger than the sum of its proper divisors (6753869).

45532531 is a wasteful number, since it uses less digits than its factorization.

45532531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217889.

The product of its digits is 9000, while the sum is 28.

The square root of 45532531 is about 6747.7797089117. The cubic root of 45532531 is about 357.0869103449.

The spelling of 45532531 in words is "forty-five million, five hundred thirty-two thousand, five hundred thirty-one".