51266256029 has 4 divisors (see below), whose sum is σ = 51268629600. Its totient is φ = 51263882460.

The previous prime is 51266255903. The next prime is 51266256031. The reversal of 51266256029 is 92065266215.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51266256029 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 (51266256079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1154087 + ... + 1197684.

It is an arithmetic number, because the mean of its divisors is an integer number (12817157400).

Almost surely, 2^51266256029 is an apocalyptic number.

It is an amenable number.

51266256029 is a deficient number, since it is larger than the sum of its proper divisors (2373571).

51266256029 is a wasteful number, since it uses less digits than its factorization.

51266256029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2373570.

The product of its (nonzero) digits is 388800, while the sum is 44.

The spelling of 51266256029 in words is "fifty-one billion, two hundred sixty-six million, two hundred fifty-six thousand, twenty-nine".