501057745 has 8 divisors (see below), whose sum is σ = 636638184. Its totient is φ = 377266944.

The previous prime is 501057727. The next prime is 501057751. The reversal of 501057745 is 547750105.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 162792081 + 338265664 = 12759^2 + 18392^2 .

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 501057745 - 2⁷ = 501057617 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 501057745.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2947314 + ... + 2947483.

It is an arithmetic number, because the mean of its divisors is an integer number (79579773).

Almost surely, 2^501057745 is an apocalyptic number.

It is an amenable number.

501057745 is a deficient number, since it is larger than the sum of its proper divisors (135580439).

501057745 is a wasteful number, since it uses less digits than its factorization.

501057745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5894819.

The product of its (nonzero) digits is 24500, while the sum is 34.

The square root of 501057745 is about 22384.3191766022. The cubic root of 501057745 is about 794.2598202841.

The spelling of 501057745 in words is "five hundred one million, fifty-seven thousand, seven hundred forty-five".