553672646 has 4 divisors (see below), whose sum is σ = 830508972. Its totient is φ = 276836322.

The previous prime is 553672619. The next prime is 553672663. The reversal of 553672646 is 646276355.

It is a happy number.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 553672597 and 553672606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138418160 + ... + 138418163.

It is an arithmetic number, because the mean of its divisors is an integer number (207627243).

Almost surely, 2^553672646 is an apocalyptic number.

553672646 is a deficient number, since it is larger than the sum of its proper divisors (276836326).

553672646 is a wasteful number, since it uses less digits than its factorization.

553672646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276836325.

The product of its digits is 907200, while the sum is 44.

The square root of 553672646 is about 23530.2495949363. The cubic root of 553672646 is about 821.1409093775.

The spelling of 553672646 in words is "five hundred fifty-three million, six hundred seventy-two thousand, six hundred forty-six".