445581057 has 8 divisors (see below), whose sum is σ = 594209376. Its totient is φ = 297003392.

The previous prime is 445581053. The next prime is 445581061. The reversal of 445581057 is 750185544.

It is an interprime number because it is at equal distance from previous prime (445581053) and next prime (445581061).

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

It is a cyclic number.

It is not a de Polignac number, because 445581057 - 2² = 445581053 is a prime.

It is not an unprimeable number, because it can be changed into a prime (445581053) 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, 19633 + ... + 35729.

It is an arithmetic number, because the mean of its divisors is an integer number (74276172).

Almost surely, 2^445581057 is an apocalyptic number.

It is an amenable number.

445581057 is a deficient number, since it is larger than the sum of its proper divisors (148628319).

445581057 is a wasteful number, since it uses less digits than its factorization.

445581057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25327.

The product of its (nonzero) digits is 112000, while the sum is 39.

The square root of 445581057 is about 21108.7909885905. The cubic root of 445581057 is about 763.7928228797.

The spelling of 445581057 in words is "four hundred forty-five million, five hundred eighty-one thousand, fifty-seven".