501896641 has 4 divisors (see below), whose sum is σ = 502287300. Its totient is φ = 501505984.

The previous prime is 501896599. The next prime is 501896651. The reversal of 501896641 is 146698105.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 146698105 = 5 ⋅29339621.

It can be written as a sum of positive squares in 2 ways, for example, as 373301041 + 128595600 = 19321^2 + 11340^2 .

It is a cyclic number.

It is not a de Polignac number, because 501896641 - 2¹¹ = 501894593 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 501896594 and 501896603.

It is not an unprimeable number, because it can be changed into a prime (501896651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193396 + ... + 195973.

It is an arithmetic number, because the mean of its divisors is an integer number (125571825).

Almost surely, 2^501896641 is an apocalyptic number.

It is an amenable number.

501896641 is a deficient number, since it is larger than the sum of its proper divisors (390659).

501896641 is a wasteful number, since it uses less digits than its factorization.

501896641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390658.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 501896641 is about 22403.0498147016. The cubic root of 501896641 is about 794.7028363413.

The spelling of 501896641 in words is "five hundred one million, eight hundred ninety-six thousand, six hundred forty-one".