51231452 has 12 divisors (see below), whose sum is σ = 89792976. Its totient is φ = 25576320.

The previous prime is 51231449. The next prime is 51231461. The reversal of 51231452 is 25413215.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6824 + ... + 12207.

It is an arithmetic number, because the mean of its divisors is an integer number (7482748).

Almost surely, 2^51231452 is an apocalyptic number.

It is an amenable number.

51231452 is a deficient number, since it is larger than the sum of its proper divisors (38561524).

51231452 is a wasteful number, since it uses less digits than its factorization.

51231452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19708 (or 19706 counting only the distinct ones).

The product of its digits is 1200, while the sum is 23.

The square root of 51231452 is about 7157.6149658947. The cubic root of 51231452 is about 371.4031261521.

Adding to 51231452 its reverse (25413215), we get a palindrome (76644667).

The spelling of 51231452 in words is "fifty-one million, two hundred thirty-one thousand, four hundred fifty-two".