2505270 has 48 divisors (see below), whose sum is σ = 6280848. Its totient is φ = 639360.

The previous prime is 2505263. The next prime is 2505271. The reversal of 2505270 is 725052.

2505270 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2505271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41040 + ... + 41100.

It is an arithmetic number, because the mean of its divisors is an integer number (130851).

2^2505270 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2505270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3140424).

2505270 is an abundant number, since it is smaller than the sum of its proper divisors (3775578).

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

2505270 is a wasteful number, since it uses less digits than its factorization.

2505270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145 (or 108 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 21.

The square root of 2505270 is about 1582.8044730794. The cubic root of 2505270 is about 135.8161804362.

It can be divided in two parts, 2505 and 270, that added together give a triangular number (2775 = T₇₄).

The spelling of 2505270 in words is "two million, five hundred five thousand, two hundred seventy".