20825488 has 20 divisors (see below), whose sum is σ = 42104448. Its totient is φ = 9959840.

The previous prime is 20825479. The next prime is 20825491. The reversal of 20825488 is 88452802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27928 + ... + 28663.

Almost surely, 2^20825488 is an apocalyptic number.

It is an amenable number.

20825488 is an abundant number, since it is smaller than the sum of its proper divisors (21278960).

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

20825488 is a wasteful number, since it uses less digits than its factorization.

20825488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56622 (or 56616 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 37.

The square root of 20825488 is about 4563.4951517450. The cubic root of 20825488 is about 275.1260601115.

The spelling of 20825488 in words is "twenty million, eight hundred twenty-five thousand, four hundred eighty-eight".