25315582 has 4 divisors (see below), whose sum is σ = 37973376. Its totient is φ = 12657790.

The previous prime is 25315559. The next prime is 25315583. The reversal of 25315582 is 28551352.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25315583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6328894 + ... + 6328897.

It is an arithmetic number, because the mean of its divisors is an integer number (9493344).

Almost surely, 2^25315582 is an apocalyptic number.

25315582 is a deficient number, since it is larger than the sum of its proper divisors (12657794).

25315582 is a wasteful number, since it uses less digits than its factorization.

25315582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12657793.

The product of its digits is 12000, while the sum is 31.

The square root of 25315582 is about 5031.4592316742. The cubic root of 25315582 is about 293.6269892678.

The spelling of 25315582 in words is "twenty-five million, three hundred fifteen thousand, five hundred eighty-two".