51522230 has 16 divisors (see below), whose sum is σ = 92832480. Its totient is φ = 20588352.

The previous prime is 51522227. The next prime is 51522239. The reversal of 51522230 is 3222515.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51522239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11786 + ... + 15554.

It is an arithmetic number, because the mean of its divisors is an integer number (5802030).

Almost surely, 2^51522230 is an apocalyptic number.

51522230 is a deficient number, since it is larger than the sum of its proper divisors (41310250).

51522230 is a wasteful number, since it uses less digits than its factorization.

51522230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5143.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 51522230 is about 7177.8987175914. The cubic root of 51522230 is about 372.1044673264.

Adding to 51522230 its reverse (3222515), we get a palindrome (54744745).

The spelling of 51522230 in words is "fifty-one million, five hundred twenty-two thousand, two hundred thirty".