51361362 has 48 divisors (see below), whose sum is σ = 121063488. Its totient is φ = 15642720.

The previous prime is 51361337. The next prime is 51361363. The reversal of 51361362 is 26316315.

It is not an unprimeable number, because it can be changed into a prime (51361363) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23037 + ... + 25167.

It is an arithmetic number, because the mean of its divisors is an integer number (2522156).

Almost surely, 2^51361362 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51361362, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60531744).

51361362 is an abundant number, since it is smaller than the sum of its proper divisors (69702126).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51361362 is a wasteful number, since it uses less digits than its factorization.

51361362 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2255 (or 2252 counting only the distinct ones).

The product of its digits is 3240, while the sum is 27.

The square root of 51361362 is about 7166.6841705213. The cubic root of 51361362 is about 371.7167892971.

Adding to 51361362 its reverse (26316315), we get a palindrome (77677677).

The spelling of 51361362 in words is "fifty-one million, three hundred sixty-one thousand, three hundred sixty-two".