20632275 has 36 divisors (see below), whose sum is σ = 37343592. Its totient is φ = 10888320.

The previous prime is 20632259. The next prime is 20632277. The reversal of 20632275 is 57223602.

20632275 is a `hidden beast` number, since 2 + 0 + 632 + 27 + 5 = 666.

It is not a de Polignac number, because 20632275 - 2⁴ = 20632259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20632277) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 23647 + ... + 24503.

It is an arithmetic number, because the mean of its divisors is an integer number (1037322).

Almost surely, 2^20632275 is an apocalyptic number.

20632275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20632275 is a deficient number, since it is larger than the sum of its proper divisors (16711317).

20632275 is a wasteful number, since it uses less digits than its factorization.

20632275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 980 (or 972 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 20632275 is about 4542.2764116685. The cubic root of 20632275 is about 274.2725678455.

Adding to 20632275 its reverse (57223602), we get a palindrome (77855877).

The spelling of 20632275 in words is "twenty million, six hundred thirty-two thousand, two hundred seventy-five".