554512646 has 4 divisors (see below), whose sum is σ = 831768972. Its totient is φ = 277256322.

The previous prime is 554512643. The next prime is 554512661. The reversal of 554512646 is 646215455.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (554512643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138628160 + ... + 138628163.

It is an arithmetic number, because the mean of its divisors is an integer number (207942243).

Almost surely, 2^554512646 is an apocalyptic number.

554512646 is a deficient number, since it is larger than the sum of its proper divisors (277256326).

554512646 is a wasteful number, since it uses less digits than its factorization.

554512646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277256325.

The product of its digits is 144000, while the sum is 38.

The square root of 554512646 is about 23548.0921944857. The cubic root of 554512646 is about 821.5559619916. Note that the first 3 decimals are identical.

The spelling of 554512646 in words is "five hundred fifty-four million, five hundred twelve thousand, six hundred forty-six".