51232122 has 32 divisors (see below), whose sum is σ = 114096960. Its totient is φ = 17040240.

The previous prime is 51232091. The next prime is 51232133. The reversal of 51232122 is 22123215.

51232122 is a `hidden beast` number, since 512 + 32 + 122 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 51232095 and 51232104.

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, 36628 + ... + 38000.

It is an arithmetic number, because the mean of its divisors is an integer number (3565530).

Almost surely, 2^51232122 is an apocalyptic number.

51232122 is an abundant number, since it is smaller than the sum of its proper divisors (62864838).

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

51232122 is a wasteful number, since it uses less digits than its factorization.

51232122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2075 (or 2069 counting only the distinct ones).

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

The square root of 51232122 is about 7157.6617690416. The cubic root of 51232122 is about 371.4047452031.

Adding to 51232122 its reverse (22123215), we get a palindrome (73355337).

The spelling of 51232122 in words is "fifty-one million, two hundred thirty-two thousand, one hundred twenty-two".