51163995 has 8 divisors (see below), whose sum is σ = 81862416. Its totient is φ = 27287456.

The previous prime is 51163969. The next prime is 51163997. The reversal of 51163995 is 59936115.

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 51163995 - 2¹⁶ = 51098459 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51163997) 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, 1705452 + ... + 1705481.

It is an arithmetic number, because the mean of its divisors is an integer number (10232802).

Almost surely, 2^51163995 is an apocalyptic number.

51163995 is a deficient number, since it is larger than the sum of its proper divisors (30698421).

51163995 is a wasteful number, since it uses less digits than its factorization.

51163995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3410941.

The product of its digits is 36450, while the sum is 39.

The square root of 51163995 is about 7152.9011596694. The cubic root of 51163995 is about 371.2400443997.

The spelling of 51163995 in words is "fifty-one million, one hundred sixty-three thousand, nine hundred ninety-five".