2501890 has 16 divisors (see below), whose sum is σ = 4768632. Its totient is φ = 941824.

The previous prime is 2501881. The next prime is 2501897. The reversal of 2501890 is 981052.

It can be written as a sum of positive squares in 4 ways, for example, as 2064969 + 436921 = 1437^2 + 661^2 .

It is an alternating number because its digits alternate between even and odd.

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 7 ways as a sum of consecutive naturals, for example, 7189 + ... + 7528.

2^2501890 is an apocalyptic number.

2501890 is a deficient number, since it is larger than the sum of its proper divisors (2266742).

2501890 is a wasteful number, since it uses less digits than its factorization.

2501890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14741.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 2501890 is about 1581.7363876449. The cubic root of 2501890 is about 135.7550738765.

The spelling of 2501890 in words is "two million, five hundred one thousand, eight hundred ninety".