51155730307 has 8 divisors (see below), whose sum is σ = 55909411632. Its totient is φ = 46419242400.

The previous prime is 51155730293. The next prime is 51155730361. The reversal of 51155730307 is 70303755115.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 51155730307 - 2³⁵ = 16795991939 is a prime.

It is a super-3 number, since 3×51155730307³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51155730707) 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, 4292128 + ... + 4304029.

It is an arithmetic number, because the mean of its divisors is an integer number (6988676454).

Almost surely, 2^51155730307 is an apocalyptic number.

51155730307 is a deficient number, since it is larger than the sum of its proper divisors (4753681325).

51155730307 is a wasteful number, since it uses less digits than its factorization.

51155730307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8596709.

The product of its (nonzero) digits is 55125, while the sum is 37.

The spelling of 51155730307 in words is "fifty-one billion, one hundred fifty-five million, seven hundred thirty thousand, three hundred seven".