51417522 has 48 divisors (see below), whose sum is σ = 124127640. Its totient is φ = 15273216.

The previous prime is 51417521. The next prime is 51417529. The reversal of 51417522 is 22571415.

It can be written as a sum of positive squares in 4 ways, for example, as 18481401 + 32936121 = 4299^2 + 5739^2 .

It is not an unprimeable number, because it can be changed into a prime (51417521) 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, 2998 + ... + 10574.

Almost surely, 2^51417522 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51417522, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62063820).

51417522 is an abundant number, since it is smaller than the sum of its proper divisors (72710118).

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

51417522 is a wasteful number, since it uses less digits than its factorization.

51417522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7627 (or 7624 counting only the distinct ones).

The product of its digits is 2800, while the sum is 27.

The square root of 51417522 is about 7170.6012300225. The cubic root of 51417522 is about 371.8522219130.

Adding to 51417522 its reverse (22571415), we get a palindrome (73988937).

The spelling of 51417522 in words is "fifty-one million, four hundred seventeen thousand, five hundred twenty-two".