802248561 has 6 divisors (see below), whose sum is σ = 1158803490. Its totient is φ = 534832368.

The previous prime is 802248527. The next prime is 802248569. The reversal of 802248561 is 165842208.

It can be written as a sum of positive squares in only one way, i.e., 799814961 + 2433600 = 28281^2 + 1560^2 .

It is not a de Polignac number, because 802248561 - 2⁶ = 802248497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (802248569) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 44569356 + ... + 44569373.

It is an arithmetic number, because the mean of its divisors is an integer number (193133915).

Almost surely, 2^802248561 is an apocalyptic number.

It is an amenable number.

802248561 is a deficient number, since it is larger than the sum of its proper divisors (356554929).

802248561 is a wasteful number, since it uses less digits than its factorization.

802248561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89138735 (or 89138732 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 802248561 is about 28323.9926740564. The cubic root of 802248561 is about 929.1866944340.

The spelling of 802248561 in words is "eight hundred two million, two hundred forty-eight thousand, five hundred sixty-one".