25690072 has 32 divisors (see below), whose sum is σ = 50457600. Its totient is φ = 12247200.

The previous prime is 25690069. The next prime is 25690079. The reversal of 25690072 is 27009652.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25690079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16879 + ... + 18337.

It is an arithmetic number, because the mean of its divisors is an integer number (1576800).

Almost surely, 2^25690072 is an apocalyptic number.

It is an amenable number.

25690072 is a deficient number, since it is larger than the sum of its proper divisors (24767528).

25690072 is a wasteful number, since it uses less digits than its factorization.

25690072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1567 (or 1563 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 25690072 is about 5068.5374616353. The cubic root of 25690072 is about 295.0677695495.

The spelling of 25690072 in words is "twenty-five million, six hundred ninety thousand, seventy-two".