669852425 has 24 divisors (see below), whose sum is σ = 923244480. Its totient is φ = 477963200.

The previous prime is 669852419. The next prime is 669852427. The reversal of 669852425 is 524258966.

It is a happy number.

669852425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 669852425 - 2¹⁶ = 669786889 is a prime.

It is a super-3 number, since 3×669852425³ (a number of 27 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 669852425.

It is not an unprimeable number, because it can be changed into a prime (669852427) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8405 + ... + 37554.

It is an arithmetic number, because the mean of its divisors is an integer number (38468520).

Almost surely, 2^669852425 is an apocalyptic number.

It is an amenable number.

669852425 is a deficient number, since it is larger than the sum of its proper divisors (253392055).

669852425 is a wasteful number, since it uses less digits than its factorization.

669852425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46033 (or 46028 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 47.

The square root of 669852425 is about 25881.5073942767. The cubic root of 669852425 is about 874.9697622204.

The spelling of 669852425 in words is "six hundred sixty-nine million, eight hundred fifty-two thousand, four hundred twenty-five".