20625203061 has 12 divisors (see below), whose sum is σ = 30752991360. Its totient is φ = 13306582440.

The previous prime is 20625203033. The next prime is 20625203089. The reversal of 20625203061 is 16030252602.

20625203061 is a `hidden beast` number, since 2 + 0 + 625 + 2 + 0 + 30 + 6 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (20625203033) and next prime (20625203089).

It is not a de Polignac number, because 20625203061 - 2⁷ = 20625202933 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20625203161) 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, 36962451 + ... + 36963008.

It is an arithmetic number, because the mean of its divisors is an integer number (2562749280).

Almost surely, 2^20625203061 is an apocalyptic number.

It is an amenable number.

20625203061 is a deficient number, since it is larger than the sum of its proper divisors (10127788299).

20625203061 is a wasteful number, since it uses less digits than its factorization.

20625203061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73925496 (or 73925493 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 20625203061 its reverse (16030252602), we get a palindrome (36655455663).

The spelling of 20625203061 in words is "twenty billion, six hundred twenty-five million, two hundred three thousand, sixty-one".