25487630 has 64 divisors (see below), whose sum is σ = 54853632. Its totient is φ = 8346240.

The previous prime is 25487629. The next prime is 25487633. The reversal of 25487630 is 3678452.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25487633) 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 31 ways as a sum of consecutive naturals, for example, 200627 + ... + 200753.

It is an arithmetic number, because the mean of its divisors is an integer number (857088).

Almost surely, 2^25487630 is an apocalyptic number.

25487630 is an abundant number, since it is smaller than the sum of its proper divisors (29366002).

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

25487630 is a wasteful number, since it uses less digits than its factorization.

25487630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 25487630 is about 5048.5275080958. The cubic root of 25487630 is about 294.2906638409.

The spelling of 25487630 in words is "twenty-five million, four hundred eighty-seven thousand, six hundred thirty".