66254095 has 4 divisors (see below), whose sum is σ = 79504920. Its totient is φ = 53003272.

The previous prime is 66254093. The next prime is 66254107. The reversal of 66254095 is 59045266.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 66254095 - 2¹ = 66254093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66254093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6625405 + ... + 6625414.

It is an arithmetic number, because the mean of its divisors is an integer number (19876230).

Almost surely, 2^66254095 is an apocalyptic number.

66254095 is a deficient number, since it is larger than the sum of its proper divisors (13250825).

66254095 is a wasteful number, since it uses less digits than its factorization.

66254095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13250824.

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 66254095 is about 8139.6618480131. The cubic root of 66254095 is about 404.6419535360.

The spelling of 66254095 in words is "sixty-six million, two hundred fifty-four thousand, ninety-five".