51136547303 has 4 divisors (see below), whose sum is σ = 51182084088. Its totient is φ = 51091010520.

The previous prime is 51136547279. The next prime is 51136547317. The reversal of 51136547303 is 30374563115.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51136547303 - 2⁶ = 51136547239 is a prime.

It is a super-2 number, since 2×51136547303² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51136547323) 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, 22766708 + ... + 22768953.

It is an arithmetic number, because the mean of its divisors is an integer number (12795521022).

Almost surely, 2^51136547303 is an apocalyptic number.

51136547303 is a deficient number, since it is larger than the sum of its proper divisors (45536785).

51136547303 is a wasteful number, since it uses less digits than its factorization.

51136547303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45536784.

The product of its (nonzero) digits is 113400, while the sum is 38.

The spelling of 51136547303 in words is "fifty-one billion, one hundred thirty-six million, five hundred forty-seven thousand, three hundred three".