51435234 has 24 divisors (see below), whose sum is σ = 117999180. Its totient is φ = 16136448.

The previous prime is 51435233. The next prime is 51435253. The reversal of 51435234 is 43253415.

It can be written as a sum of positive squares in 2 ways, for example, as 50339025 + 1096209 = 7095^2 + 1047^2 .

It is a junction number, because it is equal to n+sod(n) for n = 51435198 and 51435207.

It is not an unprimeable number, because it can be changed into a prime (51435233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83739 + ... + 84350.

Almost surely, 2^51435234 is an apocalyptic number.

51435234 is an abundant number, since it is smaller than the sum of its proper divisors (66563946).

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

51435234 is a wasteful number, since it uses less digits than its factorization.

51435234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168114 (or 168111 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 51435234 is about 7171.8361665615. The cubic root of 51435234 is about 371.8949148198.

Adding to 51435234 its reverse (43253415), we get a palindrome (94688649).

The spelling of 51435234 in words is "fifty-one million, four hundred thirty-five thousand, two hundred thirty-four".