660025083 has 8 divisors (see below), whose sum is σ = 880585488. Its totient is φ = 439740704.

The previous prime is 660025073. The next prime is 660025127. The reversal of 660025083 is 380520066.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 660025083 - 2⁶ = 660025019 is a prime.

It is a super-2 number, since 2×660025083² = 871266220378313778, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 660025083.

It is not an unprimeable number, because it can be changed into a prime (660025033) 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, 63360 + ... + 73037.

It is an arithmetic number, because the mean of its divisors is an integer number (110073186).

Almost surely, 2^660025083 is an apocalyptic number.

660025083 is a deficient number, since it is larger than the sum of its proper divisors (220560405).

660025083 is a wasteful number, since it uses less digits than its factorization.

660025083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138013.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 660025083 is about 25690.9533299175. The cubic root of 660025083 is about 870.6697986412.

The spelling of 660025083 in words is "six hundred sixty million, twenty-five thousand, eighty-three".