2057531 has 8 divisors (see below), whose sum is σ = 2360544. Its totient is φ = 1756800.

The previous prime is 2057483. The next prime is 2057537. The reversal of 2057531 is 1357502.

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 2057531 - 2¹⁴ = 2041147 is a prime.

It is a super-2 number, since 2×2057531² = 8466867631922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2057497 and 2057506.

It is not an unprimeable number, because it can be changed into a prime (2057537) 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, 2441 + ... + 3173.

It is an arithmetic number, because the mean of its divisors is an integer number (295068).

2^2057531 is an apocalyptic number.

2057531 is a deficient number, since it is larger than the sum of its proper divisors (303013).

2057531 is an equidigital number, since it uses as much as digits as its factorization.

2057531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1141.

The product of its (nonzero) digits is 1050, while the sum is 23.

The square root of 2057531 is about 1434.4096346581. The cubic root of 2057531 is about 127.1887782975.

The spelling of 2057531 in words is "two million, fifty-seven thousand, five hundred thirty-one".