6511264552 has 32 divisors (see below), whose sum is σ = 13571873280. Its totient is φ = 2908255680.

The previous prime is 6511264549. The next prime is 6511264553. The reversal of 6511264552 is 2554621156.

It is a super-2 number, since 2×6511264552² = 84793132132263521408, which contains 22 as substring.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (6511264553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1006588 + ... + 1013035.

It is an arithmetic number, because the mean of its divisors is an integer number (424121040).

Almost surely, 2^6511264552 is an apocalyptic number.

6511264552 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

6511264552 is an abundant number, since it is smaller than the sum of its proper divisors (7060608728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6511264552 is a wasteful number, since it uses less digits than its factorization.

6511264552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2019673 (or 2019669 counting only the distinct ones).

The product of its digits is 72000, while the sum is 37.

The square root of 6511264552 is about 80692.4070281709. The cubic root of 6511264552 is about 1867.3330348504. Note that the first 3 decimals are identical.

The spelling of 6511264552 in words is "six billion, five hundred eleven million, two hundred sixty-four thousand, five hundred fifty-two".