6521257046 has 16 divisors (see below), whose sum is σ = 9909270000. Its totient is φ = 3218242848.

The previous prime is 6521257027. The next prime is 6521257049. The reversal of 6521257046 is 6407521256.

It is a super-2 number, since 2×6521257046² = 85053586920009292232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6521257049) 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, 159080 + ... + 195828.

It is an arithmetic number, because the mean of its divisors is an integer number (619329375).

Almost surely, 2^6521257046 is an apocalyptic number.

6521257046 is a deficient number, since it is larger than the sum of its proper divisors (3388012954).

6521257046 is a wasteful number, since it uses less digits than its factorization.

6521257046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37903.

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 6521257046 is about 80754.3004799125. The cubic root of 6521257046 is about 1868.2877790977.

The spelling of 6521257046 in words is "six billion, five hundred twenty-one million, two hundred fifty-seven thousand, forty-six".