51223652 has 48 divisors (see below), whose sum is σ = 98712432. Its totient is φ = 23162880.

The previous prime is 51223633. The next prime is 51223661. The reversal of 51223652 is 25632215.

It can be written as a sum of positive squares in 8 ways, for example, as 1999396 + 49224256 = 1414^2 + 7016^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 219728 + ... + 219960.

It is an arithmetic number, because the mean of its divisors is an integer number (2056509).

Almost surely, 2^51223652 is an apocalyptic number.

It is an amenable number.

51223652 is a deficient number, since it is larger than the sum of its proper divisors (47488780).

51223652 is a wasteful number, since it uses less digits than its factorization.

51223652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368 (or 366 counting only the distinct ones).

The product of its digits is 3600, while the sum is 26.

The square root of 51223652 is about 7157.0700709159. The cubic root of 51223652 is about 371.3842764591.

Adding to 51223652 its reverse (25632215), we get a palindrome (76855867).

The spelling of 51223652 in words is "fifty-one million, two hundred twenty-three thousand, six hundred fifty-two".