7057531 has 8 divisors (see below), whose sum is σ = 8000720. Its totient is φ = 6171552.

The previous prime is 7057507. The next prime is 7057537. The reversal of 7057531 is 1357507.

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 7057531 - 2¹⁵ = 7024763 is a prime.

It is a super-2 number, since 2×7057531² = 99617487631922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7057531.

It is not an unprimeable number, because it can be changed into a prime (7057537) 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, 14040 + ... + 14533.

It is an arithmetic number, because the mean of its divisors is an integer number (1000090).

Almost surely, 2^7057531 is an apocalyptic number.

7057531 is a deficient number, since it is larger than the sum of its proper divisors (943189).

7057531 is a wasteful number, since it uses less digits than its factorization.

7057531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28605.

The product of its (nonzero) digits is 3675, while the sum is 28.

The square root of 7057531 is about 2656.6014002857. The cubic root of 7057531 is about 191.8157502552.

The spelling of 7057531 in words is "seven million, fifty-seven thousand, five hundred thirty-one".