66025337 has 4 divisors (see below), whose sum is σ = 75457536. Its totient is φ = 56593140.

The previous prime is 66025303. The next prime is 66025357. The reversal of 66025337 is 73352066.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 66025337 - 2¹⁴ = 66008953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66025357) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4716089 + ... + 4716102.

It is an arithmetic number, because the mean of its divisors is an integer number (18864384).

Almost surely, 2^66025337 is an apocalyptic number.

It is an amenable number.

66025337 is a deficient number, since it is larger than the sum of its proper divisors (9432199).

66025337 is an equidigital number, since it uses as much as digits as its factorization.

66025337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9432198.

The product of its (nonzero) digits is 22680, while the sum is 32.

The square root of 66025337 is about 8125.5976395586. The cubic root of 66025337 is about 404.1757090312.

The spelling of 66025337 in words is "sixty-six million, twenty-five thousand, three hundred thirty-seven".