51381595 has 8 divisors (see below), whose sum is σ = 61708176. Its totient is φ = 41071776.

The previous prime is 51381587. The next prime is 51381613. The reversal of 51381595 is 59518315.

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 51381595 - 2³ = 51381587 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4024 + ... + 10906.

It is an arithmetic number, because the mean of its divisors is an integer number (7713522).

Almost surely, 2^51381595 is an apocalyptic number.

51381595 is a deficient number, since it is larger than the sum of its proper divisors (10326581).

51381595 is a wasteful number, since it uses less digits than its factorization.

51381595 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8381.

The product of its digits is 27000, while the sum is 37.

The square root of 51381595 is about 7168.0956327326. The cubic root of 51381595 is about 371.7655935482.

The spelling of 51381595 in words is "fifty-one million, three hundred eighty-one thousand, five hundred ninety-five".