20523108 has 24 divisors (see below), whose sum is σ = 47965120. Its totient is φ = 6829920.

The previous prime is 20523103. The next prime is 20523119. The reversal of 20523108 is 80132502.

It is not an unprimeable number, because it can be changed into a prime (20523103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10098 + ... + 11958.

Almost surely, 2^20523108 is an apocalyptic number.

It is an amenable number.

20523108 is an abundant number, since it is smaller than the sum of its proper divisors (27442012).

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

20523108 is a wasteful number, since it uses less digits than its factorization.

20523108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2787 (or 2785 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 20523108 is about 4530.2437020540. The cubic root of 20523108 is about 273.7879795515.

The spelling of 20523108 in words is "twenty million, five hundred twenty-three thousand, one hundred eight".