2549660782 has 16 divisors (see below), whose sum is σ = 4180090752. Its totient is φ = 1161135360.

The previous prime is 2549660767. The next prime is 2549660797. The reversal of 2549660782 is 2870669452.

It is an interprime number because it is at equal distance from previous prime (2549660767) and next prime (2549660797).

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, 1208463 + ... + 1210570.

It is an arithmetic number, because the mean of its divisors is an integer number (261255672).

Almost surely, 2^2549660782 is an apocalyptic number.

2549660782 is a deficient number, since it is larger than the sum of its proper divisors (1630429970).

2549660782 is a wasteful number, since it uses less digits than its factorization.

2549660782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2419083.

The product of its (nonzero) digits is 1451520, while the sum is 49.

The square root of 2549660782 is about 50494.1658214095. The cubic root of 2549660782 is about 1366.1366251406.

The spelling of 2549660782 in words is "two billion, five hundred forty-nine million, six hundred sixty thousand, seven hundred eighty-two".