51315262 has 8 divisors (see below), whose sum is σ = 77048496. Its totient is φ = 25632432.

The previous prime is 51315227. The next prime is 51315281. The reversal of 51315262 is 26251315.

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

It is a super-2 number, since 2×51315262² = 5266512228257288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9943 + ... + 14194.

It is an arithmetic number, because the mean of its divisors is an integer number (9631062).

Almost surely, 2^51315262 is an apocalyptic number.

51315262 is a deficient number, since it is larger than the sum of its proper divisors (25733234).

51315262 is a wasteful number, since it uses less digits than its factorization.

51315262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25202.

The product of its digits is 1800, while the sum is 25.

The square root of 51315262 is about 7163.4671772822. The cubic root of 51315262 is about 371.6055430684.

Adding to 51315262 its reverse (26251315), we get a palindrome (77566577).

The spelling of 51315262 in words is "fifty-one million, three hundred fifteen thousand, two hundred sixty-two".