2549530 has 16 divisors (see below), whose sum is σ = 4616424. Its totient is φ = 1013760.

The previous prime is 2549479. The next prime is 2549531. The reversal of 2549530 is 359452.

It can be written as a sum of positive squares in 4 ways, for example, as 2259009 + 290521 = 1503^2 + 539^2 .

It is not an unprimeable number, because it can be changed into a prime (2549531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1270 + ... + 2590.

2^2549530 is an apocalyptic number.

2549530 is a deficient number, since it is larger than the sum of its proper divisors (2066894).

2549530 is a wasteful number, since it uses less digits than its factorization.

2549530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1521.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 2549530 is about 1596.7247727771. The cubic root of 2549530 is about 136.6113266591.

Adding to 2549530 its product of nonzero digits (5400), we get a triangular number (2554930 = T₂₂₆₀).

The spelling of 2549530 in words is "two million, five hundred forty-nine thousand, five hundred thirty".