51022602 has 32 divisors (see below), whose sum is σ = 118316160. Its totient is φ = 16267680.

The previous prime is 51022597. The next prime is 51022603. The reversal of 51022602 is 20622015.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (51022603) 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, 19299 + ... + 21782.

It is an arithmetic number, because the mean of its divisors is an integer number (3697380).

Almost surely, 2^51022602 is an apocalyptic number.

51022602 is an abundant number, since it is smaller than the sum of its proper divisors (67293558).

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

51022602 is a wasteful number, since it uses less digits than its factorization.

51022602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41115 (or 41109 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 51022602 is about 7143.0107097778. The cubic root of 51022602 is about 370.8977517963.

Adding to 51022602 its reverse (20622015), we get a palindrome (71644617).

The spelling of 51022602 in words is "fifty-one million, twenty-two thousand, six hundred two".