51261353 has 8 divisors (see below), whose sum is σ = 60223296. Its totient is φ = 43016400.

The previous prime is 51261313. The next prime is 51261359. The reversal of 51261353 is 35316215.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51261353 is a prime.

It is a super-2 number, since 2×51261353² = 5255452622781218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51261359) 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, 179093 + ... + 179378.

It is an arithmetic number, because the mean of its divisors is an integer number (7527912).

Almost surely, 2^51261353 is an apocalyptic number.

It is an amenable number.

51261353 is a deficient number, since it is larger than the sum of its proper divisors (8961943).

51261353 is a wasteful number, since it uses less digits than its factorization.

51261353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358495.

The product of its digits is 2700, while the sum is 26.

The square root of 51261353 is about 7159.7034156451. The cubic root of 51261353 is about 371.4753680049.

Adding to 51261353 its reverse (35316215), we get a palindrome (86577568).

The spelling of 51261353 in words is "fifty-one million, two hundred sixty-one thousand, three hundred fifty-three".