51153122 has 4 divisors (see below), whose sum is σ = 76729686. Its totient is φ = 25576560.

The previous prime is 51153107. The next prime is 51153161. The reversal of 51153122 is 22135115.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 34351321 + 16801801 = 5861^2 + 4099^2 .

It is a junction number, because it is equal to n+sod(n) for n = 51153094 and 51153103.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12788279 + ... + 12788282.

Almost surely, 2^51153122 is an apocalyptic number.

51153122 is a deficient number, since it is larger than the sum of its proper divisors (25576564).

51153122 is a wasteful number, since it uses less digits than its factorization.

51153122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25576563.

The product of its digits is 300, while the sum is 20.

The square root of 51153122 is about 7152.1410780269. The cubic root of 51153122 is about 371.2137447921.

Adding to 51153122 its reverse (22135115), we get a palindrome (73288237).

The spelling of 51153122 in words is "fifty-one million, one hundred fifty-three thousand, one hundred twenty-two".