51455066 has 16 divisors (see below), whose sum is σ = 83779584. Its totient is φ = 23559984.

The previous prime is 51455029. The next prime is 51455069. The reversal of 51455066 is 66055415.

It is not an unprimeable number, because it can be changed into a prime (51455069) 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, 4490 + ... + 11093.

It is an arithmetic number, because the mean of its divisors is an integer number (5236224).

Almost surely, 2^51455066 is an apocalyptic number.

51455066 is a deficient number, since it is larger than the sum of its proper divisors (32324518).

51455066 is a wasteful number, since it uses less digits than its factorization.

51455066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15725.

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 51455066 is about 7173.2186638914. The cubic root of 51455066 is about 371.9427061337.

The spelling of 51455066 in words is "fifty-one million, four hundred fifty-five thousand, sixty-six".