25742755 has 4 divisors (see below), whose sum is σ = 30891312. Its totient is φ = 20594200.

The previous prime is 25742737. The next prime is 25742771. The reversal of 25742755 is 55724752.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 25742755 - 2⁹ = 25742243 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2574271 + ... + 2574280.

It is an arithmetic number, because the mean of its divisors is an integer number (7722828).

Almost surely, 2^25742755 is an apocalyptic number.

25742755 is a deficient number, since it is larger than the sum of its proper divisors (5148557).

25742755 is an equidigital number, since it uses as much as digits as its factorization.

25742755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5148556.

The product of its digits is 98000, while the sum is 37.

The square root of 25742755 is about 5073.7318612635. The cubic root of 25742755 is about 295.2693317358.

It can be divided in two parts, 2574 and 2755, that added together give a square (5329 = 73²).

The spelling of 25742755 in words is "twenty-five million, seven hundred forty-two thousand, seven hundred fifty-five".