2504961 has 6 divisors (see below), whose sum is σ = 3618290. Its totient is φ = 1669968.

The previous prime is 2504927. The next prime is 2504969. The reversal of 2504961 is 1694052.

It can be written as a sum of positive squares in only one way, i.e., 2480625 + 24336 = 1575^2 + 156^2 .

It is not a de Polignac number, because 2504961 - 2¹⁵ = 2472193 is a prime.

It is a super-2 number, since 2×2504961² = 12549659223042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2504969) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 139156 + ... + 139173.

2^2504961 is an apocalyptic number.

It is an amenable number.

2504961 is a deficient number, since it is larger than the sum of its proper divisors (1113329).

2504961 is a wasteful number, since it uses less digits than its factorization.

2504961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278335 (or 278332 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 2504961 is about 1582.7068585180. The cubic root of 2504961 is about 135.8105963507.

The spelling of 2504961 in words is "two million, five hundred four thousand, nine hundred sixty-one".