51224124309 has 8 divisors (see below), whose sum is σ = 69234433152. Its totient is φ = 33681615840.

The previous prime is 51224124197. The next prime is 51224124313. The reversal of 51224124309 is 90342142215.

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

It is not a de Polignac number, because 51224124309 - 2⁸ = 51224124053 is a prime.

It is a super-2 number, since 2×51224124309² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 51224124309.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51224124349) 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, 116949837 + ... + 116950274.

It is an arithmetic number, because the mean of its divisors is an integer number (8654304144).

Almost surely, 2^51224124309 is an apocalyptic number.

It is an amenable number.

51224124309 is a deficient number, since it is larger than the sum of its proper divisors (18010308843).

51224124309 is a wasteful number, since it uses less digits than its factorization.

51224124309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233900187.

The product of its (nonzero) digits is 17280, while the sum is 33.

The spelling of 51224124309 in words is "fifty-one billion, two hundred twenty-four million, one hundred twenty-four thousand, three hundred nine".