42150445531 has 4 divisors (see below), whose sum is σ = 43603909200. Its totient is φ = 40696981864.

The previous prime is 42150445511. The next prime is 42150445553. The reversal of 42150445531 is 13554405124.

42150445531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42150445531 - 2²⁵ = 42116891099 is a prime.

It is a super-2 number, since 2×42150445531² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42150445501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 726731791 + ... + 726731848.

It is an arithmetic number, because the mean of its divisors is an integer number (10900977300).

Almost surely, 2^42150445531 is an apocalyptic number.

42150445531 is a deficient number, since it is larger than the sum of its proper divisors (1453463669).

42150445531 is a wasteful number, since it uses less digits than its factorization.

42150445531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1453463668.

The product of its (nonzero) digits is 48000, while the sum is 34.

The spelling of 42150445531 in words is "forty-two billion, one hundred fifty million, four hundred forty-five thousand, five hundred thirty-one".