51032432237 has 2 divisors, whose sum is σ = 51032432238. Its totient is φ = 51032432236.

The previous prime is 51032432203. The next prime is 51032432251. The reversal of 51032432237 is 73223423015.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47895760201 + 3136672036 = 218851^2 + 56006^2 .

It is a cyclic number.

It is not a de Polignac number, because 51032432237 - 2⁸ = 51032431981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51032432287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25516216118 + 25516216119.

It is an arithmetic number, because the mean of its divisors is an integer number (25516216119).

Almost surely, 2^51032432237 is an apocalyptic number.

It is an amenable number.

51032432237 is a deficient number, since it is larger than the sum of its proper divisors (1).

51032432237 is an equidigital number, since it uses as much as digits as its factorization.

51032432237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 32.

The spelling of 51032432237 in words is "fifty-one billion, thirty-two million, four hundred thirty-two thousand, two hundred thirty-seven".