51432006 has 32 divisors (see below), whose sum is σ = 105596928. Its totient is φ = 16692480.

The previous prime is 51432001. The next prime is 51432013. The reversal of 51432006 is 60023415.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51432001) 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, 76086 + ... + 76758.

It is an arithmetic number, because the mean of its divisors is an integer number (3299904).

Almost surely, 2^51432006 is an apocalyptic number.

51432006 is an abundant number, since it is smaller than the sum of its proper divisors (54164922).

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

51432006 is a wasteful number, since it uses less digits than its factorization.

51432006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 996.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 51432006 is about 7171.6111160603. The cubic root of 51432006 is about 371.8871347969.

The spelling of 51432006 in words is "fifty-one million, four hundred thirty-two thousand, six".