51259852238 has 32 divisors (see below), whose sum is σ = 89998331904. Its totient is φ = 21440086272.

The previous prime is 51259852201. The next prime is 51259852283. The reversal of 51259852238 is 83225895215.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121931 + ... + 342617.

It is an arithmetic number, because the mean of its divisors is an integer number (2812447872).

Almost surely, 2^51259852238 is an apocalyptic number.

51259852238 is a deficient number, since it is larger than the sum of its proper divisors (38738479666).

51259852238 is a wasteful number, since it uses less digits than its factorization.

51259852238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221096.

The product of its digits is 1728000, while the sum is 50.

The spelling of 51259852238 in words is "fifty-one billion, two hundred fifty-nine million, eight hundred fifty-two thousand, two hundred thirty-eight".