51266702533 has 8 divisors (see below), whose sum is σ = 51739076088. Its totient is φ = 50796352704.

The previous prime is 51266702503. The next prime is 51266702537. The reversal of 51266702533 is 33520766215.

It can be written as a sum of positive squares in 4 ways, for example, as 29627704129 + 21638998404 = 172127^2 + 147102^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51266702533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51266702537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 455010 + ... + 556387.

It is an arithmetic number, because the mean of its divisors is an integer number (6467384511).

Almost surely, 2^51266702533 is an apocalyptic number.

It is an amenable number.

51266702533 is a deficient number, since it is larger than the sum of its proper divisors (472373555).

51266702533 is a wasteful number, since it uses less digits than its factorization.

51266702533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011863.

The product of its (nonzero) digits is 226800, while the sum is 40.

The spelling of 51266702533 in words is "fifty-one billion, two hundred sixty-six million, seven hundred two thousand, five hundred thirty-three".