675472581 has 64 divisors (see below), whose sum is σ = 1191590400. Its totient is φ = 370137600.

The previous prime is 675472519. The next prime is 675472597. The reversal of 675472581 is 185274576.

675472581 is a `hidden beast` number, since 6 + 7 + 547 + 25 + 81 = 666.

It is not a de Polignac number, because 675472581 - 2⁶ = 675472517 is a prime.

It is a super-2 number, since 2×675472581² = 912526415365603122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (675473581) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 471975 + ... + 473403.

It is an arithmetic number, because the mean of its divisors is an integer number (18618600).

Almost surely, 2^675472581 is an apocalyptic number.

675472581 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

675472581 is a deficient number, since it is larger than the sum of its proper divisors (516117819).

675472581 is a wasteful number, since it uses less digits than its factorization.

675472581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1547 (or 1541 counting only the distinct ones).

The product of its digits is 470400, while the sum is 45.

The square root of 675472581 is about 25989.8553478083. The cubic root of 675472581 is about 877.4099900370.

The spelling of 675472581 in words is "six hundred seventy-five million, four hundred seventy-two thousand, five hundred eighty-one".