51156293 has 8 divisors (see below), whose sum is σ = 52901376. Its totient is φ = 49417200.

The previous prime is 51156271. The next prime is 51156299. The reversal of 51156293 is 39265115.

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 51156293 - 2¹² = 51152197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51156299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21923 + ... + 24143.

It is an arithmetic number, because the mean of its divisors is an integer number (6612672).

Almost surely, 2^51156293 is an apocalyptic number.

It is an amenable number.

51156293 is a deficient number, since it is larger than the sum of its proper divisors (1745083).

51156293 is a wasteful number, since it uses less digits than its factorization.

51156293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2995.

The product of its digits is 8100, while the sum is 32.

The square root of 51156293 is about 7152.3627564603. The cubic root of 51156293 is about 371.2214151904.

The spelling of 51156293 in words is "fifty-one million, one hundred fifty-six thousand, two hundred ninety-three".