51323401 has 4 divisors (see below), whose sum is σ = 51352704. Its totient is φ = 51294100.

The previous prime is 51323399. The next prime is 51323423. The reversal of 51323401 is 10432315.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51323401 - 2¹ = 51323399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51323471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11845 + ... + 15586.

It is an arithmetic number, because the mean of its divisors is an integer number (12838176).

Almost surely, 2^51323401 is an apocalyptic number.

It is an amenable number.

51323401 is a deficient number, since it is larger than the sum of its proper divisors (29303).

51323401 is a wasteful number, since it uses less digits than its factorization.

51323401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29302.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 51323401 is about 7164.0352455861. The cubic root of 51323401 is about 371.6251885404.

Adding to 51323401 its reverse (10432315), we get a palindrome (61755716).

The spelling of 51323401 in words is "fifty-one million, three hundred twenty-three thousand, four hundred one".