2549421810 has 64 divisors (see below), whose sum is σ = 7321426560. Its totient is φ = 627549120.

The previous prime is 2549421793. The next prime is 2549421817. The reversal of 2549421810 is 181249452.

It is a super-2 number, since 2×2549421810² = 12999103130607352200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2549421817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 359656 + ... + 366675.

It is an arithmetic number, because the mean of its divisors is an integer number (114397290).

Almost surely, 2^2549421810 is an apocalyptic number.

2549421810 is an abundant number, since it is smaller than the sum of its proper divisors (4772004750).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2549421810 is a wasteful number, since it uses less digits than its factorization.

2549421810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726360 (or 726354 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 2549421810 is about 50491.7994331753. The cubic root of 2549421810 is about 1366.0939425212.

The spelling of 2549421810 in words is "two billion, five hundred forty-nine million, four hundred twenty-one thousand, eight hundred ten".