2505910 has 48 divisors (see below), whose sum is σ = 5266800. Its totient is φ = 855360.

The previous prime is 2505901. The next prime is 2505917. The reversal of 2505910 is 195052.

2505910 = T₁₄₀ + T₁₄₁ + ... + T₂₆₀.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2505917) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22936 + ... + 23044.

It is an arithmetic number, because the mean of its divisors is an integer number (109725).

2^2505910 is an apocalyptic number.

2505910 is an abundant number, since it is smaller than the sum of its proper divisors (2760890).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2505910 is a wasteful number, since it uses less digits than its factorization.

2505910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157 (or 146 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 2505910 is about 1583.0066329615. The cubic root of 2505910 is about 135.8277447193.

The spelling of 2505910 in words is "two million, five hundred five thousand, nine hundred ten".