51266256030 has 48 divisors (see below), whose sum is σ = 145409747184. Its totient is φ = 12428183040.

The previous prime is 51266255903. The next prime is 51266256031. The reversal of 51266256030 is 3065266215.

It is a happy number.

51266256030 is a `hidden beast` number, since 5 + 1 + 2 + 6 + 62 + 560 + 30 = 666.

It is a super-2 number, since 2×51266256030² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51266256031) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25891059 + ... + 25893038.

It is an arithmetic number, because the mean of its divisors is an integer number (3029369733).

Almost surely, 2^51266256030 is an apocalyptic number.

51266256030 is an abundant number, since it is smaller than the sum of its proper divisors (94143491154).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51266256030 is a wasteful number, since it uses less digits than its factorization.

51266256030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51784121 (or 51784118 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The spelling of 51266256030 in words is "fifty-one billion, two hundred sixty-six million, two hundred fifty-six thousand, thirty".