42495531 has 8 divisors (see below), whose sum is σ = 61019280. Its totient is φ = 26151072.

The previous prime is 42495521. The next prime is 42495553. The reversal of 42495531 is 13559424.

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

It is not a de Polignac number, because 42495531 - 2⁷ = 42495403 is a prime.

It is a super-2 number, since 2×42495531² = 3611740309943922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42495492 and 42495501.

It is not an unprimeable number, because it can be changed into a prime (42495521) 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, 544776 + ... + 544853.

It is an arithmetic number, because the mean of its divisors is an integer number (7627410).

Almost surely, 2^42495531 is an apocalyptic number.

42495531 is a deficient number, since it is larger than the sum of its proper divisors (18523749).

42495531 is a wasteful number, since it uses less digits than its factorization.

42495531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1089645.

The product of its digits is 21600, while the sum is 33.

The square root of 42495531 is about 6518.8596395382. The cubic root of 42495531 is about 348.9643699446.

The spelling of 42495531 in words is "forty-two million, four hundred ninety-five thousand, five hundred thirty-one".