801550213 has 4 divisors (see below), whose sum is σ = 807861760. Its totient is φ = 795238668.

The previous prime is 801550201. The next prime is 801550219. The reversal of 801550213 is 312055108.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-801550213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (801550219) 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, 3155583 + ... + 3155836.

It is an arithmetic number, because the mean of its divisors is an integer number (201965440).

Almost surely, 2^801550213 is an apocalyptic number.

It is an amenable number.

801550213 is a deficient number, since it is larger than the sum of its proper divisors (6311547).

801550213 is a wasteful number, since it uses less digits than its factorization.

801550213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6311546.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 801550213 is about 28311.6621377128. The cubic root of 801550213 is about 928.9170007764.

The spelling of 801550213 in words is "eight hundred one million, five hundred fifty thousand, two hundred thirteen".