51446065 has 16 divisors (see below), whose sum is σ = 67541760. Its totient is φ = 37307520.

The previous prime is 51446051. The next prime is 51446069. The reversal of 51446065 is 56064415.

It is not a de Polignac number, because 51446065 - 2⁷ = 51445937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51446069) 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, 21352 + ... + 23638.

It is an arithmetic number, because the mean of its divisors is an integer number (4221360).

Almost surely, 2^51446065 is an apocalyptic number.

51446065 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

51446065 is a deficient number, since it is larger than the sum of its proper divisors (16095695).

51446065 is a wasteful number, since it uses less digits than its factorization.

51446065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2712.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 51446065 is about 7172.5912332992. The cubic root of 51446065 is about 371.9210169734.

The spelling of 51446065 in words is "fifty-one million, four hundred forty-six thousand, sixty-five".