481639625 has 16 divisors (see below), whose sum is σ = 601710096. Its totient is φ = 384912000.

The previous prime is 481639583. The next prime is 481639649. The reversal of 481639625 is 526936184.

It can be written as a sum of positive squares in 8 ways, for example, as 117440569 + 364199056 = 10837^2 + 19084^2 .

It is not a de Polignac number, because 481639625 - 2¹⁰ = 481638601 is a prime.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 201437 + ... + 203813.

It is an arithmetic number, because the mean of its divisors is an integer number (37606881).

Almost surely, 2^481639625 is an apocalyptic number.

It is an amenable number.

481639625 is a deficient number, since it is larger than the sum of its proper divisors (120070471).

481639625 is a wasteful number, since it uses less digits than its factorization.

481639625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4013 (or 4003 counting only the distinct ones).

The product of its digits is 311040, while the sum is 44.

The square root of 481639625 is about 21946.2895497166. The cubic root of 481639625 is about 783.8640310026.

The spelling of 481639625 in words is "four hundred eighty-one million, six hundred thirty-nine thousand, six hundred twenty-five".