25663038 has 16 divisors (see below), whose sum is σ = 51423120. Its totient is φ = 8538176.

The previous prime is 25663037. The next prime is 25663073. The reversal of 25663038 is 83036652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25663037) 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, 345 + ... + 7172.

It is an arithmetic number, because the mean of its divisors is an integer number (3213945).

Almost surely, 2^25663038 is an apocalyptic number.

25663038 is an abundant number, since it is smaller than the sum of its proper divisors (25760082).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25663038 is a wasteful number, since it uses less digits than its factorization.

25663038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8091.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 25663038 is about 5065.8699154242. The cubic root of 25663038 is about 294.9642319940.

The spelling of 25663038 in words is "twenty-five million, six hundred sixty-three thousand, thirty-eight".