6406525600 has 36 divisors (see below), whose sum is σ = 15639932574. Its totient is φ = 2562609920.

The previous prime is 6406525579. The next prime is 6406525603. The reversal of 6406525600 is 65256046.

It can be written as a sum of positive squares in 3 ways, for example, as 5020005904 + 1386519696 = 70852^2 + 37236^2 .

It is not an unprimeable number, because it can be changed into a prime (6406525603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4003279 + ... + 4004878.

Almost surely, 2^6406525600 is an apocalyptic number.

It is an amenable number.

6406525600 is an abundant number, since it is smaller than the sum of its proper divisors (9233406974).

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

6406525600 is a wasteful number, since it uses less digits than its factorization.

6406525600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8008177 (or 8008164 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 6406525600 is about 80040.7746089454. The cubic root of 6406525600 is about 1857.2663430992.

The spelling of 6406525600 in words is "six billion, four hundred six million, five hundred twenty-five thousand, six hundred".