2855531 has 8 divisors (see below), whose sum is σ = 3273984. Its totient is φ = 2439720.

The previous prime is 2855513. The next prime is 2855557. The reversal of 2855531 is 1355582.

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 2855531 - 2⁶ = 2855467 is a prime.

It is a super-2 number, since 2×2855531² = 16308114583922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2855494 and 2855503.

It is not an unprimeable number, because it can be changed into a prime (2855581) 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, 3116 + ... + 3926.

It is an arithmetic number, because the mean of its divisors is an integer number (409248).

2^2855531 is an apocalyptic number.

2855531 is a deficient number, since it is larger than the sum of its proper divisors (418453).

2855531 is an equidigital number, since it uses as much as digits as its factorization.

2855531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1321.

The product of its digits is 6000, while the sum is 29.

The square root of 2855531 is about 1689.8316484195. The cubic root of 2855531 is about 141.8716521945.

The spelling of 2855531 in words is "two million, eight hundred fifty-five thousand, five hundred thirty-one".