485725381 has 8 divisors (see below), whose sum is σ = 499255704. Its totient is φ = 472216320.

The previous prime is 485725351. The next prime is 485725403. The reversal of 485725381 is 183527584.

It can be written as a sum of positive squares in 4 ways, for example, as 208802500 + 276922881 = 14450^2 + 16641^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-485725381 is a prime.

It is a super-2 number, since 2×485725381² = 471858291495190322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (485725301) 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, 48441 + ... + 57601.

It is an arithmetic number, because the mean of its divisors is an integer number (62406963).

Almost surely, 2^485725381 is an apocalyptic number.

It is an amenable number.

485725381 is a deficient number, since it is larger than the sum of its proper divisors (13530323).

485725381 is a wasteful number, since it uses less digits than its factorization.

485725381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10631.

The product of its digits is 268800, while the sum is 43.

The square root of 485725381 is about 22039.1783195291. The cubic root of 485725381 is about 786.0743028342.

The spelling of 485725381 in words is "four hundred eighty-five million, seven hundred twenty-five thousand, three hundred eighty-one".