25726570 has 16 divisors (see below), whose sum is σ = 48745440. Its totient is φ = 9748944.

The previous prime is 25726541. The next prime is 25726573. The reversal of 25726570 is 7562752.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (25726573) 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 7 ways as a sum of consecutive naturals, for example, 67512 + ... + 67891.

It is an arithmetic number, because the mean of its divisors is an integer number (3046590).

Almost surely, 2^25726570 is an apocalyptic number.

25726570 is a deficient number, since it is larger than the sum of its proper divisors (23018870).

25726570 is a wasteful number, since it uses less digits than its factorization.

25726570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135429.

The product of its (nonzero) digits is 29400, while the sum is 34.

The square root of 25726570 is about 5072.1366306518. The cubic root of 25726570 is about 295.2074381270.

It can be divided in two parts, 25726 and 570, that multiplied together give a triangular number (14663820 = T₅₄₁₅).

The spelling of 25726570 in words is "twenty-five million, seven hundred twenty-six thousand, five hundred seventy".