2549916831 has 48 divisors (see below), whose sum is σ = 4541650560. Its totient is φ = 1254899520.

The previous prime is 2549916799. The next prime is 2549916833. The reversal of 2549916831 is 1386199452.

It is not a de Polignac number, because 2549916831 - 2⁵ = 2549916799 is a prime.

It is a super-2 number, since 2×2549916831² = 13004151690034165122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2549916833) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10776 + ... + 72221.

It is an arithmetic number, because the mean of its divisors is an integer number (94617720).

Almost surely, 2^2549916831 is an apocalyptic number.

2549916831 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2549916831 is a deficient number, since it is larger than the sum of its proper divisors (1991733729).

2549916831 is a wasteful number, since it uses less digits than its factorization.

2549916831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83044 (or 83037 counting only the distinct ones).

The product of its digits is 466560, while the sum is 48.

The square root of 2549916831 is about 50496.7011892856. The cubic root of 2549916831 is about 1366.1823549112.

The spelling of 2549916831 in words is "two billion, five hundred forty-nine million, nine hundred sixteen thousand, eight hundred thirty-one".