51321411 has 16 divisors (see below), whose sum is σ = 76548000. Its totient is φ = 33981984.

The previous prime is 51321401. The next prime is 51321421. The reversal of 51321411 is 11412315.

It is an interprime number because it is at equal distance from previous prime (51321401) and next prime (51321421).

It is not a de Polignac number, because 51321411 - 2⁵ = 51321379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51321401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2356 + ... + 10401.

It is an arithmetic number, because the mean of its divisors is an integer number (4784250).

Almost surely, 2^51321411 is an apocalyptic number.

51321411 is a deficient number, since it is larger than the sum of its proper divisors (25226589).

51321411 is a wasteful number, since it uses less digits than its factorization.

51321411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12915 (or 12909 counting only the distinct ones).

The product of its digits is 120, while the sum is 18.

The square root of 51321411 is about 7163.8963560342. The cubic root of 51321411 is about 371.6203853793.

Adding to 51321411 its reverse (11412315), we get a palindrome (62733726).

The spelling of 51321411 in words is "fifty-one million, three hundred twenty-one thousand, four hundred eleven".