51349263 has 8 divisors (see below), whose sum is σ = 78246528. Its totient is φ = 29342424.

The previous prime is 51349247. The next prime is 51349283. The reversal of 51349263 is 36294315.

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

It is not a de Polignac number, because 51349263 - 2⁴ = 51349247 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51349213) 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, 1222581 + ... + 1222622.

It is an arithmetic number, because the mean of its divisors is an integer number (9780816).

Almost surely, 2^51349263 is an apocalyptic number.

51349263 is a deficient number, since it is larger than the sum of its proper divisors (26897265).

51349263 is a wasteful number, since it uses less digits than its factorization.

51349263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2445213.

The product of its digits is 19440, while the sum is 33.

The square root of 51349263 is about 7165.8400065868. The cubic root of 51349263 is about 371.6875990365.

The spelling of 51349263 in words is "fifty-one million, three hundred forty-nine thousand, two hundred sixty-three".