20524135014251 has 12 divisors (see below), whose sum is σ = 23746933077000. Its totient is φ = 17676288527040.

The previous prime is 20524135014239. The next prime is 20524135014277. The reversal of 20524135014251 is 15241053142502.

It is a de Polignac number, because none of the positive numbers 2^k-20524135014251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20524135014451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4463706926 + ... + 4463711523.

It is an arithmetic number, because the mean of its divisors is an integer number (1978911089750).

Almost surely, 2^{20524135014251} is an apocalyptic number.

20524135014251 is a deficient number, since it is larger than the sum of its proper divisors (3222798062749).

20524135014251 is a wasteful number, since it uses less digits than its factorization.

20524135014251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8927418490 (or 8927418479 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 35.

Adding to 20524135014251 its reverse (15241053142502), we get a palindrome (35765188156753).

The spelling of 20524135014251 in words is "twenty trillion, five hundred twenty-four billion, one hundred thirty-five million, fourteen thousand, two hundred fifty-one".