20514251512 has 64 divisors (see below), whose sum is σ = 41506452000. Its totient is φ = 9476020224.

The previous prime is 20514251431. The next prime is 20514251533. The reversal of 20514251512 is 21515241502.

It is a super-2 number, since 2×20514251512² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 977158 + ... + 997930.

Almost surely, 2^20514251512 is an apocalyptic number.

It is an amenable number.

20514251512 is an abundant number, since it is smaller than the sum of its proper divisors (20992200488).

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

20514251512 is a wasteful number, since it uses less digits than its factorization.

20514251512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20960 (or 20956 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 28.

The spelling of 20514251512 in words is "twenty billion, five hundred fourteen million, two hundred fifty-one thousand, five hundred twelve".