1625370605 has 8 divisors (see below), whose sum is σ = 1950967392. Its totient is φ = 1299948048.

The previous prime is 1625370589. The next prime is 1625370661. The reversal of 1625370605 is 5060735261.

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 1625370605 - 2⁴ = 1625370589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 22067 + ... + 61136.

It is an arithmetic number, because the mean of its divisors is an integer number (243870924).

Almost surely, 2^1625370605 is an apocalyptic number.

It is an amenable number.

1625370605 is a deficient number, since it is larger than the sum of its proper divisors (325596787).

1625370605 is an equidigital number, since it uses as much as digits as its factorization.

1625370605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87115.

The product of its (nonzero) digits is 37800, while the sum is 35.

The square root of 1625370605 is about 40315.8852687126. The cubic root of 1625370605 is about 1175.7567131069.

The spelling of 1625370605 in words is "one billion, six hundred twenty-five million, three hundred seventy thousand, six hundred five".