51888385 has 8 divisors (see below), whose sum is σ = 63054720. Its totient is φ = 40984944.

The previous prime is 51888383. The next prime is 51888407. The reversal of 51888385 is 58388815.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51888385 - 2¹ = 51888383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51888383) 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, 65287 + ... + 66076.

It is an arithmetic number, because the mean of its divisors is an integer number (7881840).

Almost surely, 2^51888385 is an apocalyptic number.

It is an amenable number.

51888385 is a deficient number, since it is larger than the sum of its proper divisors (11166335).

51888385 is a wasteful number, since it uses less digits than its factorization.

51888385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131447.

The product of its digits is 307200, while the sum is 46.

The square root of 51888385 is about 7203.3592857777. The cubic root of 51888385 is about 372.9838703862.

The spelling of 51888385 in words is "fifty-one million, eight hundred eighty-eight thousand, three hundred eighty-five".