5557831 has 4 divisors (see below), whose sum is σ = 5564032. Its totient is φ = 5551632.

The previous prime is 5557819. The next prime is 5557843. The reversal of 5557831 is 1387555.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (5557819) and next prime (5557843).

It is a cyclic number.

It is not a de Polignac number, because 5557831 - 2¹⁹ = 5033543 is a prime.

It is a super-2 number, since 2×5557831² = 61778970849122, which contains 22 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 (5557031) 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, 1470 + ... + 3643.

It is an arithmetic number, because the mean of its divisors is an integer number (1391008).

Almost surely, 2^5557831 is an apocalyptic number.

5557831 is a deficient number, since it is larger than the sum of its proper divisors (6201).

5557831 is a wasteful number, since it uses less digits than its factorization.

5557831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6200.

The product of its digits is 21000, while the sum is 34.

The square root of 5557831 is about 2357.5052491988. The cubic root of 5557831 is about 177.1339384353.

The spelling of 5557831 in words is "five million, five hundred fifty-seven thousand, eight hundred thirty-one".