51888278 has 16 divisors (see below), whose sum is σ = 88231920. Its totient is φ = 22687776.

The previous prime is 51888271. The next prime is 51888289. The reversal of 51888278 is 87288815.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51888271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52025 + ... + 53012.

It is an arithmetic number, because the mean of its divisors is an integer number (5514495).

Almost surely, 2^51888278 is an apocalyptic number.

51888278 is a deficient number, since it is larger than the sum of its proper divisors (36343642).

51888278 is a wasteful number, since it uses less digits than its factorization.

51888278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105071.

The product of its digits is 286720, while the sum is 47.

The square root of 51888278 is about 7203.3518586836. The cubic root of 51888278 is about 372.9836140070.

The spelling of 51888278 in words is "fifty-one million, eight hundred eighty-eight thousand, two hundred seventy-eight".