20514512 has 40 divisors (see below), whose sum is σ = 42408000. Its totient is φ = 9580032.

The previous prime is 20514503. The next prime is 20514521. The reversal of 20514512 is 21541502.

It is an interprime number because it is at equal distance from previous prime (20514503) and next prime (20514521).

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, 53939 + ... + 54317.

It is an arithmetic number, because the mean of its divisors is an integer number (1060200).

Almost surely, 2^20514512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20514512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21204000).

20514512 is an abundant number, since it is smaller than the sum of its proper divisors (21893488).

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

20514512 is a wasteful number, since it uses less digits than its factorization.

20514512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603 (or 597 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 20514512 is about 4529.2948678575. The cubic root of 20514512 is about 273.7497493100.

The spelling of 20514512 in words is "twenty million, five hundred fourteen thousand, five hundred twelve".