6547400056 has 8 divisors (see below), whose sum is σ = 12276375120. Its totient is φ = 3273700024.

The previous prime is 6547400053. The next prime is 6547400059. The reversal of 6547400056 is 6500047456.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6547400053) and next prime (6547400059).

It is a tau number, because it is divible by the number of its divisors (8).

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

It is a junction number, because it is equal to n+sod(n) for n = 6547399988 and 6547400024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6547400051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 409212496 + ... + 409212511.

It is an arithmetic number, because the mean of its divisors is an integer number (1534546890).

Almost surely, 2^6547400056 is an apocalyptic number.

It is an amenable number.

6547400056 is a deficient number, since it is larger than the sum of its proper divisors (5728975064).

6547400056 is a wasteful number, since it uses less digits than its factorization.

6547400056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818425013 (or 818425009 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 37.

The square root of 6547400056 is about 80916.0061792474. The cubic root of 6547400056 is about 1870.7810378060.

The spelling of 6547400056 in words is "six billion, five hundred forty-seven million, four hundred thousand, fifty-six".