531532045 has 16 divisors (see below), whose sum is σ = 718272000. Its totient is φ = 374097600.

The previous prime is 531532019. The next prime is 531532051. The reversal of 531532045 is 540235135.

It is a de Polignac number, because none of the positive numbers 2^k-531532045 is a prime.

It is a congruent number.

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, 154170 + ... + 157579.

It is an arithmetic number, because the mean of its divisors is an integer number (44892000).

Almost surely, 2^531532045 is an apocalyptic number.

531532045 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

531532045 is a deficient number, since it is larger than the sum of its proper divisors (186739955).

531532045 is a wasteful number, since it uses less digits than its factorization.

531532045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311796.

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

The square root of 531532045 is about 23054.9787464660. The cubic root of 531532045 is about 810.0462530109.

The spelling of 531532045 in words is "five hundred thirty-one million, five hundred thirty-two thousand, forty-five".