51445434 has 32 divisors (see below), whose sum is σ = 113685120. Its totient is φ = 15437312.

The previous prime is 51445423. The next prime is 51445439. The reversal of 51445434 is 43454415.

It is not an unprimeable number, because it can be changed into a prime (51445439) 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, 8619 + ... + 13310.

It is an arithmetic number, because the mean of its divisors is an integer number (3552660).

Almost surely, 2^51445434 is an apocalyptic number.

51445434 is an abundant number, since it is smaller than the sum of its proper divisors (62239686).

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

51445434 is a wasteful number, since it uses less digits than its factorization.

51445434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21974.

The product of its digits is 19200, while the sum is 30.

The square root of 51445434 is about 7172.5472462717. The cubic root of 51445434 is about 371.9194963963.

Adding to 51445434 its reverse (43454415), we get a palindrome (94899849).

The spelling of 51445434 in words is "fifty-one million, four hundred forty-five thousand, four hundred thirty-four".