25623742 has 16 divisors (see below), whose sum is σ = 41322240. Its totient is φ = 11878488.

The previous prime is 25623739. The next prime is 25623749. The reversal of 25623742 is 24732652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25623749) 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, 5388 + ... + 8959.

It is an arithmetic number, because the mean of its divisors is an integer number (2582640).

Almost surely, 2^25623742 is an apocalyptic number.

25623742 is a deficient number, since it is larger than the sum of its proper divisors (15698498).

25623742 is a wasteful number, since it uses less digits than its factorization.

25623742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14415.

The product of its digits is 20160, while the sum is 31.

The square root of 25623742 is about 5061.9899249208. The cubic root of 25623742 is about 294.8136024437.

The spelling of 25623742 in words is "twenty-five million, six hundred twenty-three thousand, seven hundred forty-two".