20652550 has 24 divisors (see below), whose sum is σ = 38564496. Its totient is φ = 8228640.

The previous prime is 20652547. The next prime is 20652559. The reversal of 20652550 is 5525602.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20652559) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15199 + ... + 16501.

It is an arithmetic number, because the mean of its divisors is an integer number (1606854).

Almost surely, 2^20652550 is an apocalyptic number.

20652550 is a deficient number, since it is larger than the sum of its proper divisors (17911946).

20652550 is a wasteful number, since it uses less digits than its factorization.

20652550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1632 (or 1627 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 20652550 is about 4544.5076741051. The cubic root of 20652550 is about 274.3623794922.

The spelling of 20652550 in words is "twenty million, six hundred fifty-two thousand, five hundred fifty".