1625560 has 16 divisors (see below), whose sum is σ = 3657600. Its totient is φ = 650208.

The previous prime is 1625551. The next prime is 1625573. The reversal of 1625560 is 655261.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20280 + ... + 20359.

It is an arithmetic number, because the mean of its divisors is an integer number (228600).

2^1625560 is an apocalyptic number.

1625560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1625560 is an abundant number, since it is smaller than the sum of its proper divisors (2032040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1625560 is a wasteful number, since it uses less digits than its factorization.

1625560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40650 (or 40646 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 1625560 is about 1274.9745095491. The cubic root of 1625560 is about 117.5802379368.

Subtracting from 1625560 its reverse (655261), we obtain a cube (970299 = 99³).

The spelling of 1625560 in words is "one million, six hundred twenty-five thousand, five hundred sixty".