25261570 has 16 divisors (see below), whose sum is σ = 45831168. Its totient is φ = 10024560.

The previous prime is 25261547. The next prime is 25261571. The reversal of 25261570 is 7516252.

It is not an unprimeable number, because it can be changed into a prime (25261571) 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, 8676 + ... + 11215.

It is an arithmetic number, because the mean of its divisors is an integer number (2864448).

Almost surely, 2^25261570 is an apocalyptic number.

25261570 is a deficient number, since it is larger than the sum of its proper divisors (20569598).

25261570 is a wasteful number, since it uses less digits than its factorization.

25261570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20025.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 25261570 is about 5026.0889367380. The cubic root of 25261570 is about 293.4180181916.

It can be divided in two parts, 2526 and 1570, that added together give a 12-th power (4096 = 2¹²).

The spelling of 25261570 in words is "twenty-five million, two hundred sixty-one thousand, five hundred seventy".