647511152 has 10 divisors (see below), whose sum is σ = 1254552888. Its totient is φ = 323755568.

The previous prime is 647511119. The next prime is 647511169. The reversal of 647511152 is 251115746.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20234708 + ... + 20234739.

Almost surely, 2^647511152 is an apocalyptic number.

It is an amenable number.

647511152 is a deficient number, since it is larger than the sum of its proper divisors (607041736).

647511152 is a wasteful number, since it uses less digits than its factorization.

647511152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40469455 (or 40469449 counting only the distinct ones).

The product of its digits is 8400, while the sum is 32.

The square root of 647511152 is about 25446.2404295802. The cubic root of 647511152 is about 865.1320822507.

Adding to 647511152 its reverse (251115746), we get a palindrome (898626898).

The spelling of 647511152 in words is "six hundred forty-seven million, five hundred eleven thousand, one hundred fifty-two".