2549981424 has 40 divisors (see below), whose sum is σ = 6592669312. Its totient is φ = 849320640.

The previous prime is 2549981387. The next prime is 2549981437. The reversal of 2549981424 is 4241899452.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42159 + ... + 82929.

Almost surely, 2^2549981424 is an apocalyptic number.

2549981424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2549981424 is an abundant number, since it is smaller than the sum of its proper divisors (4042687888).

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

2549981424 is a wasteful number, since it uses less digits than its factorization.

2549981424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42085 (or 42079 counting only the distinct ones).

The product of its digits is 829440, while the sum is 48.

The square root of 2549981424 is about 50497.3407616678. The cubic root of 2549981424 is about 1366.1938905909.

The spelling of 2549981424 in words is "two billion, five hundred forty-nine million, nine hundred eighty-one thousand, four hundred twenty-four".