1625554338 has 16 divisors (see below), whose sum is σ = 3271056096. Its totient is φ = 538526880.

The previous prime is 1625554319. The next prime is 1625554349. The reversal of 1625554338 is 8334555261.

It is a self number, because there is not a number n which added to its sum of digits gives 1625554338.

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, 830083 + ... + 832038.

It is an arithmetic number, because the mean of its divisors is an integer number (204441006).

Almost surely, 2^1625554338 is an apocalyptic number.

1625554338 is an abundant number, since it is smaller than the sum of its proper divisors (1645501758).

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

1625554338 is a wasteful number, since it uses less digits than its factorization.

1625554338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1662289.

The product of its digits is 432000, while the sum is 42.

The square root of 1625554338 is about 40318.1638718829. The cubic root of 1625554338 is about 1175.8010142175.

The spelling of 1625554338 in words is "one billion, six hundred twenty-five million, five hundred fifty-four thousand, three hundred thirty-eight".