2501893 has 4 divisors (see below), whose sum is σ = 2506860. Its totient is φ = 2496928.

The previous prime is 2501881. The next prime is 2501897. The reversal of 2501893 is 3981052.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 777924 + 1723969 = 882^2 + 1313^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2501893 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 (2501897) 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, 1630 + ... + 2767.

It is an arithmetic number, because the mean of its divisors is an integer number (626715).

2^2501893 is an apocalyptic number.

It is an amenable number.

2501893 is a deficient number, since it is larger than the sum of its proper divisors (4967).

2501893 is an equidigital number, since it uses as much as digits as its factorization.

2501893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4966.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 2501893 is about 1581.7373359695. The cubic root of 2501893 is about 135.7551281375.

The spelling of 2501893 in words is "two million, five hundred one thousand, eight hundred ninety-three".