51307434 has 24 divisors (see below), whose sum is σ = 116000352. Its totient is φ = 16358760.

The previous prime is 51307433. The next prime is 51307447. The reversal of 51307434 is 43470315.

It is a junction number, because it is equal to n+sod(n) for n = 51307398 and 51307407.

It is not an unprimeable number, because it can be changed into a prime (51307433) 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, 61552 + ... + 62379.

It is an arithmetic number, because the mean of its divisors is an integer number (4833348).

Almost surely, 2^51307434 is an apocalyptic number.

51307434 is an abundant number, since it is smaller than the sum of its proper divisors (64692918).

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

51307434 is a wasteful number, since it uses less digits than its factorization.

51307434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123962 (or 123959 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 51307434 is about 7162.9207729808. The cubic root of 51307434 is about 371.5866463113.

Adding to 51307434 its reverse (43470315), we get a palindrome (94777749).

The spelling of 51307434 in words is "fifty-one million, three hundred seven thousand, four hundred thirty-four".