51004301237 has 4 divisors (see below), whose sum is σ = 51129006540. Its totient is φ = 50879595936.

The previous prime is 51004301189. The next prime is 51004301251. The reversal of 51004301237 is 73210340015.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 48149963761 + 2854337476 = 219431^2 + 53426^2 .

It is a cyclic number.

It is not a de Polignac number, because 51004301237 - 2¹⁴ = 51004284853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51004301437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62352038 + ... + 62352855.

It is an arithmetic number, because the mean of its divisors is an integer number (12782251635).

Almost surely, 2^51004301237 is an apocalyptic number.

It is an amenable number.

51004301237 is a deficient number, since it is larger than the sum of its proper divisors (124705303).

51004301237 is a wasteful number, since it uses less digits than its factorization.

51004301237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124705302.

The product of its (nonzero) digits is 2520, while the sum is 26.

The spelling of 51004301237 in words is "fifty-one billion, four million, three hundred one thousand, two hundred thirty-seven".