381625559 has 8 divisors (see below), whose sum is σ = 446286720. Its totient is φ = 319500216.

The previous prime is 381625553. The next prime is 381625579. The reversal of 381625559 is 955526183.

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

It is not a de Polignac number, because 381625559 - 2¹² = 381621463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381625553) 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, 633629 + ... + 634230.

It is an arithmetic number, because the mean of its divisors is an integer number (55785840).

Almost surely, 2^381625559 is an apocalyptic number.

381625559 is a deficient number, since it is larger than the sum of its proper divisors (64661161).

381625559 is a wasteful number, since it uses less digits than its factorization.

381625559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1267909.

The product of its digits is 324000, while the sum is 44.

The square root of 381625559 is about 19535.2389030695. The cubic root of 381625559 is about 725.3469977468.

The spelling of 381625559 in words is "three hundred eighty-one million, six hundred twenty-five thousand, five hundred fifty-nine".