20520532 has 24 divisors (see below), whose sum is σ = 38024000. Its totient is φ = 9662976.

The previous prime is 20520527. The next prime is 20520553. The reversal of 20520532 is 23502502.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13969 + ... + 15367.

Almost surely, 2^20520532 is an apocalyptic number.

It is an amenable number.

20520532 is a deficient number, since it is larger than the sum of its proper divisors (17503468).

20520532 is a wasteful number, since it uses less digits than its factorization.

20520532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1615 (or 1613 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 20520532 is about 4529.9593817164. The cubic root of 20520532 is about 273.7765240523.

The spelling of 20520532 in words is "twenty million, five hundred twenty thousand, five hundred thirty-two".