675407531 has 4 divisors (see below), whose sum is σ = 689777952. Its totient is φ = 661037112.

The previous prime is 675407521. The next prime is 675407539. The reversal of 675407531 is 135704576.

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 675407531 - 2²⁶ = 608298667 is a prime.

It is a super-2 number, since 2×675407531² = 912350665863031922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (675407539) 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, 7185140 + ... + 7185233.

It is an arithmetic number, because the mean of its divisors is an integer number (172444488).

Almost surely, 2^675407531 is an apocalyptic number.

675407531 is a deficient number, since it is larger than the sum of its proper divisors (14370421).

675407531 is a wasteful number, since it uses less digits than its factorization.

675407531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14370420.

The product of its (nonzero) digits is 88200, while the sum is 38.

The square root of 675407531 is about 25988.6038678495. The cubic root of 675407531 is about 877.3818234103.

The spelling of 675407531 in words is "six hundred seventy-five million, four hundred seven thousand, five hundred thirty-one".