860553231 has 12 divisors (see below), whose sum is σ = 1151015832. Its totient is φ = 571901904.

The previous prime is 860553181. The next prime is 860553233. The reversal of 860553231 is 132355068.

It is not a de Polignac number, because 860553231 - 2⁶ = 860553167 is a prime.

It is a super-2 number, since 2×860553231² = 1481103726769078722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 860553192 and 860553201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (860553233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 429925 + ... + 431921.

It is an arithmetic number, because the mean of its divisors is an integer number (95917986).

Almost surely, 2^860553231 is an apocalyptic number.

860553231 is a deficient number, since it is larger than the sum of its proper divisors (290462601).

860553231 is an equidigital number, since it uses as much as digits as its factorization.

860553231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2758 (or 2379 counting only the distinct ones).

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

The square root of 860553231 is about 29335.1875910143. The cubic root of 860553231 is about 951.1724143695.

The spelling of 860553231 in words is "eight hundred sixty million, five hundred fifty-three thousand, two hundred thirty-one".