51906356253 has 80 divisors (see below), whose sum is σ = 83274600640. Its totient is φ = 32122656000.

The previous prime is 51906356251. The next prime is 51906356261. The reversal of 51906356253 is 35265360915.

51906356253 is a `hidden beast` number, since 5 + 1 + 9 + 0 + 635 + 6 + 2 + 5 + 3 = 666.

It is not a de Polignac number, because 51906356253 - 2¹ = 51906356251 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51906356199 and 51906356208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51906356251) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 28819953 + ... + 28821753.

It is an arithmetic number, because the mean of its divisors is an integer number (1040932508).

Almost surely, 2^51906356253 is an apocalyptic number.

It is an amenable number.

51906356253 is a deficient number, since it is larger than the sum of its proper divisors (31368244387).

51906356253 is a wasteful number, since it uses less digits than its factorization.

51906356253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2200 (or 2191 counting only the distinct ones).

The product of its (nonzero) digits is 729000, while the sum is 45.

The spelling of 51906356253 in words is "fifty-one billion, nine hundred six million, three hundred fifty-six thousand, two hundred fifty-three".