2231556479 has 4 divisors (see below), whose sum is σ = 2349006840. Its totient is φ = 2114106120.

The previous prime is 2231556463. The next prime is 2231556499. The reversal of 2231556479 is 9746551322.

2231556479 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2231556479 - 2⁴ = 2231556463 is a prime.

It is a super-3 number, since 3×2231556479³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231556449) 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, 58725152 + ... + 58725189.

It is an arithmetic number, because the mean of its divisors is an integer number (587251710).

Almost surely, 2^2231556479 is an apocalyptic number.

2231556479 is a deficient number, since it is larger than the sum of its proper divisors (117450361).

2231556479 is a wasteful number, since it uses less digits than its factorization.

2231556479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117450360.

The product of its digits is 453600, while the sum is 44.

The square root of 2231556479 is about 47239.3530755873. The cubic root of 2231556479 is about 1306.7804471137.

The spelling of 2231556479 in words is "two billion, two hundred thirty-one million, five hundred fifty-six thousand, four hundred seventy-nine".