51433152 has 112 divisors (see below), whose sum is σ = 149717760. Its totient is φ = 15510528.

The previous prime is 51433127. The next prime is 51433157. The reversal of 51433152 is 25133415.

51433152 is nontrivially palindromic in base 7.

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

It is not an unprimeable number, because it can be changed into a prime (51433157) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83598 + ... + 84210.

Almost surely, 2^51433152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51433152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74858880).

51433152 is an abundant number, since it is smaller than the sum of its proper divisors (98284608).

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

51433152 is a wasteful number, since it uses less digits than its factorization.

51433152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670 (or 660 counting only the distinct ones).

The product of its digits is 1800, while the sum is 24.

The square root of 51433152 is about 7171.6910139799. The cubic root of 51433152 is about 371.8898968869.

Adding to 51433152 its reverse (25133415), we get a palindrome (76566567).

The spelling of 51433152 in words is "fifty-one million, four hundred thirty-three thousand, one hundred fifty-two".