2503949 has 12 divisors (see below), whose sum is σ = 2941884. Its totient is φ = 2124864.

The previous prime is 2503931. The next prime is 2503961. The reversal of 2503949 is 9493052.

It can be written as a sum of positive squares in 2 ways, for example, as 1416100 + 1087849 = 1190^2 + 1043^2 .

It is not a de Polignac number, because 2503949 - 2¹² = 2499853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2503909) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6527 + ... + 6899.

It is an arithmetic number, because the mean of its divisors is an integer number (245157).

2^2503949 is an apocalyptic number.

It is an amenable number.

2503949 is a deficient number, since it is larger than the sum of its proper divisors (437935).

2503949 is a wasteful number, since it uses less digits than its factorization.

2503949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524 (or 517 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 2503949 is about 1582.3871207767. The cubic root of 2503949 is about 135.7923048036.

The spelling of 2503949 in words is "two million, five hundred three thousand, nine hundred forty-nine".