66562054 has 16 divisors (see below), whose sum is σ = 113183280. Its totient is φ = 29103840.

The previous prime is 66562051. The next prime is 66562061. The reversal of 66562054 is 45026566.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66562051) 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, 66877 + ... + 67864.

It is an arithmetic number, because the mean of its divisors is an integer number (7073955).

Almost surely, 2^66562054 is an apocalyptic number.

66562054 is a deficient number, since it is larger than the sum of its proper divisors (46621226).

66562054 is a wasteful number, since it uses less digits than its factorization.

66562054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134775.

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 66562054 is about 8158.5571028216. The cubic root of 66562054 is about 405.2679302140.

The spelling of 66562054 in words is "sixty-six million, five hundred sixty-two thousand, fifty-four".