51455163 has 8 divisors (see below), whose sum is σ = 71589888. Its totient is φ = 32811944.

The previous prime is 51455143. The next prime is 51455167. The reversal of 51455163 is 36155415.

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 51455163 - 2⁹ = 51454651 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51455163.

It is not an unprimeable number, because it can be changed into a prime (51455167) 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, 372795 + ... + 372932.

It is an arithmetic number, because the mean of its divisors is an integer number (8948736).

Almost surely, 2^51455163 is an apocalyptic number.

51455163 is a deficient number, since it is larger than the sum of its proper divisors (20134725).

51455163 is a wasteful number, since it uses less digits than its factorization.

51455163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745753.

The product of its digits is 9000, while the sum is 30.

The square root of 51455163 is about 7173.2254251487. The cubic root of 51455163 is about 371.9429398549.

The spelling of 51455163 in words is "fifty-one million, four hundred fifty-five thousand, one hundred sixty-three".