51251352 has 32 divisors (see below), whose sum is σ = 132548400. Its totient is φ = 16494464.

The previous prime is 51251287. The next prime is 51251359. The reversal of 51251352 is 25315215.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51251359) 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, 36123 + ... + 37514.

Almost surely, 2^51251352 is an apocalyptic number.

It is an amenable number.

51251352 is an abundant number, since it is smaller than the sum of its proper divisors (81297048).

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

51251352 is a wasteful number, since it uses less digits than its factorization.

51251352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73675 (or 73671 counting only the distinct ones).

The product of its digits is 1500, while the sum is 24.

The square root of 51251352 is about 7159.0049587914. The cubic root of 51251352 is about 371.4512083696.

Adding to 51251352 its reverse (25315215), we get a palindrome (76566567).

The spelling of 51251352 in words is "fifty-one million, two hundred fifty-one thousand, three hundred fifty-two".