51445115 has 16 divisors (see below), whose sum is σ = 62856000. Its totient is φ = 40415232.

The previous prime is 51445091. The next prime is 51445117. The reversal of 51445115 is 51154415.

It is a cyclic number.

It is not a de Polignac number, because 51445115 - 2¹⁶ = 51379579 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51445117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85586 + ... + 86184.

It is an arithmetic number, because the mean of its divisors is an integer number (3928500).

Almost surely, 2^51445115 is an apocalyptic number.

51445115 is a deficient number, since it is larger than the sum of its proper divisors (11410885).

51445115 is a wasteful number, since it uses less digits than its factorization.

51445115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 886.

The product of its digits is 2000, while the sum is 26.

The square root of 51445115 is about 7172.5250086702. The cubic root of 51445115 is about 371.9187276688.

The spelling of 51445115 in words is "fifty-one million, four hundred forty-five thousand, one hundred fifteen".