445725801 has 32 divisors (see below), whose sum is σ = 681609600. Its totient is φ = 287688960.

The previous prime is 445725793. The next prime is 445725803. The reversal of 445725801 is 108527544.

445725801 is a `hidden beast` number, since 4 + 4 + 5 + 72 + 580 + 1 = 666.

It is not a de Polignac number, because 445725801 - 2³ = 445725793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (445725803) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 150190 + ... + 153128.

It is an arithmetic number, because the mean of its divisors is an integer number (21300300).

Almost surely, 2^445725801 is an apocalyptic number.

445725801 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

445725801 is a deficient number, since it is larger than the sum of its proper divisors (235883799).

445725801 is a wasteful number, since it uses less digits than its factorization.

445725801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3126 (or 3120 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 36.

The square root of 445725801 is about 21112.2192343676. The cubic root of 445725801 is about 763.8755182411.

The spelling of 445725801 in words is "four hundred forty-five million, seven hundred twenty-five thousand, eight hundred one".