51143552 has 32 divisors (see below), whose sum is σ = 105182400. Its totient is φ = 24744960.

The previous prime is 51143551. The next prime is 51143557. The reversal of 51143552 is 25534115.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×51143552² = 5231325822353408, which contains 22 as substring.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51143551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2477 + ... + 10412.

It is an arithmetic number, because the mean of its divisors is an integer number (3286950).

Almost surely, 2^51143552 is an apocalyptic number.

It is an amenable number.

51143552 is an abundant number, since it is smaller than the sum of its proper divisors (54038848).

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

51143552 is a wasteful number, since it uses less digits than its factorization.

51143552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12934 (or 12922 counting only the distinct ones).

The product of its digits is 3000, while the sum is 26.

The square root of 51143552 is about 7151.4720163055. The cubic root of 51143552 is about 371.1905937965.

Adding to 51143552 its reverse (25534115), we get a palindrome (76677667).

The spelling of 51143552 in words is "fifty-one million, one hundred forty-three thousand, five hundred fifty-two".