51252311 has 8 divisors (see below), whose sum is σ = 56154384. Its totient is φ = 46390720.

The previous prime is 51252307. The next prime is 51252319. The reversal of 51252311 is 11325215.

It is a happy number.

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 51252311 - 2² = 51252307 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51252319) 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, 7436 + ... + 12561.

It is an arithmetic number, because the mean of its divisors is an integer number (7019298).

Almost surely, 2^51252311 is an apocalyptic number.

51252311 is a deficient number, since it is larger than the sum of its proper divisors (4902073).

51252311 is a wasteful number, since it uses less digits than its factorization.

51252311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20241.

The product of its digits is 300, while the sum is 20.

The square root of 51252311 is about 7159.0719370600. The cubic root of 51252311 is about 371.4535251832.

Adding to 51252311 its reverse (11325215), we get a palindrome (62577526).

The spelling of 51252311 in words is "fifty-one million, two hundred fifty-two thousand, three hundred eleven".