549195802 has 4 divisors (see below), whose sum is σ = 823793706. Its totient is φ = 274597900.

The previous prime is 549195791. The next prime is 549195809. The reversal of 549195802 is 208591945.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 549011761 + 184041 = 23431^2 + 429^2 .

It is not an unprimeable number, because it can be changed into a prime (549195809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137298949 + ... + 137298952.

Almost surely, 2^549195802 is an apocalyptic number.

549195802 is a deficient number, since it is larger than the sum of its proper divisors (274597904).

549195802 is a wasteful number, since it uses less digits than its factorization.

549195802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274597903.

The product of its (nonzero) digits is 129600, while the sum is 43.

The square root of 549195802 is about 23434.9269680961. The cubic root of 549195802 is about 818.9217445827.

The spelling of 549195802 in words is "five hundred forty-nine million, one hundred ninety-five thousand, eight hundred two".