51432141 has 4 divisors (see below), whose sum is σ = 68576192. Its totient is φ = 34288092.

The previous prime is 51432133. The next prime is 51432181. The reversal of 51432141 is 14123415.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 51432141 - 2³ = 51432133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51432181) 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, 8572021 + ... + 8572026.

It is an arithmetic number, because the mean of its divisors is an integer number (17144048).

Almost surely, 2^51432141 is an apocalyptic number.

It is an amenable number.

51432141 is a deficient number, since it is larger than the sum of its proper divisors (17144051).

51432141 is a wasteful number, since it uses less digits than its factorization.

51432141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17144050.

The product of its digits is 480, while the sum is 21.

The square root of 51432141 is about 7171.6205281652. The cubic root of 51432141 is about 371.8874601761.

Adding to 51432141 its reverse (14123415), we get a palindrome (65555556).

The spelling of 51432141 in words is "fifty-one million, four hundred thirty-two thousand, one hundred forty-one".