2495921 has 4 divisors (see below), whose sum is σ = 2502144. Its totient is φ = 2489700.

The previous prime is 2495887. The next prime is 2495947. The reversal of 2495921 is 1295942.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2495921 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2495981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2465 + ... + 3326.

It is an arithmetic number, because the mean of its divisors is an integer number (625536).

2^2495921 is an apocalyptic number.

It is an amenable number.

2495921 is a deficient number, since it is larger than the sum of its proper divisors (6223).

2495921 is an equidigital number, since it uses as much as digits as its factorization.

2495921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6222.

The product of its digits is 6480, while the sum is 32.

The square root of 2495921 is about 1579.8484104496. The cubic root of 2495921 is about 135.6470265853.

The spelling of 2495921 in words is "two million, four hundred ninety-five thousand, nine hundred twenty-one".