51535432442 has 32 divisors (see below), whose sum is σ = 88168953600. Its totient is φ = 22380749568.

The previous prime is 51535432441. The next prime is 51535432451. The reversal of 51535432442 is 24423453515.

It is a junction number, because it is equal to n+sod(n) for n = 51535432396 and 51535432405.

It is not an unprimeable number, because it can be changed into a prime (51535432441) 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, 2055659 + ... + 2080577.

It is an arithmetic number, because the mean of its divisors is an integer number (2755279800).

Almost surely, 2^51535432442 is an apocalyptic number.

51535432442 is a deficient number, since it is larger than the sum of its proper divisors (36633521158).

51535432442 is a wasteful number, since it uses less digits than its factorization.

51535432442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29630.

The product of its digits is 288000, while the sum is 38.

Adding to 51535432442 its reverse (24423453515), we get a palindrome (75958885957).

The spelling of 51535432442 in words is "fifty-one billion, five hundred thirty-five million, four hundred thirty-two thousand, four hundred forty-two".