51432434054 has 4 divisors (see below), whose sum is σ = 77148651084. Its totient is φ = 25716217026.

The previous prime is 51432434017. The next prime is 51432434057. The reversal of 51432434054 is 45043423415.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45043423415 = 5 ⋅9008684683.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51432434057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12858108512 + ... + 12858108515.

It is an arithmetic number, because the mean of its divisors is an integer number (19287162771).

Almost surely, 2^51432434054 is an apocalyptic number.

51432434054 is a deficient number, since it is larger than the sum of its proper divisors (25716217030).

51432434054 is a wasteful number, since it uses less digits than its factorization.

51432434054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25716217029.

The product of its (nonzero) digits is 115200, while the sum is 35.

Adding to 51432434054 its reverse (45043423415), we get a palindrome (96475857469).

The spelling of 51432434054 in words is "fifty-one billion, four hundred thirty-two million, four hundred thirty-four thousand, fifty-four".