51373133 has 8 divisors (see below), whose sum is σ = 62165952. Its totient is φ = 41443776.

The previous prime is 51373111. The next prime is 51373139. The reversal of 51373133 is 33137315.

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 51373133 - 2²² = 47178829 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 (51373139) 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, 215735 + ... + 215972.

It is an arithmetic number, because the mean of its divisors is an integer number (7770744).

Almost surely, 2^51373133 is an apocalyptic number.

It is an amenable number.

51373133 is a deficient number, since it is larger than the sum of its proper divisors (10792819).

51373133 is a wasteful number, since it uses less digits than its factorization.

51373133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431731.

The product of its digits is 2835, while the sum is 26.

The square root of 51373133 is about 7167.5053540266. The cubic root of 51373133 is about 371.7451838200.

The spelling of 51373133 in words is "fifty-one million, three hundred seventy-three thousand, one hundred thirty-three".