554797966 has 4 divisors (see below), whose sum is σ = 832196952. Its totient is φ = 277398982.

The previous prime is 554797963. The next prime is 554797981. The reversal of 554797966 is 669797455.

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

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 554797966.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (554797963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138699490 + ... + 138699493.

It is an arithmetic number, because the mean of its divisors is an integer number (208049238).

Almost surely, 2^554797966 is an apocalyptic number.

554797966 is a deficient number, since it is larger than the sum of its proper divisors (277398986).

554797966 is a wasteful number, since it uses less digits than its factorization.

554797966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277398985.

The product of its digits is 14288400, while the sum is 58.

The square root of 554797966 is about 23554.1496556339. The cubic root of 554797966 is about 821.6968461573.

The spelling of 554797966 in words is "five hundred fifty-four million, seven hundred ninety-seven thousand, nine hundred sixty-six".