6255997500 has 60 divisors (see below), whose sum is σ = 18240842312. Its totient is φ = 1668264000.

The previous prime is 6255997487. The next prime is 6255997507. The reversal of 6255997500 is 57995526.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (60).

It is a self number, because there is not a number n which added to its sum of digits gives 6255997500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6255997507) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 409567 + ... + 424566.

Almost surely, 2^6255997500 is an apocalyptic number.

6255997500 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6255997500 is an abundant number, since it is smaller than the sum of its proper divisors (11984844812).

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

6255997500 is a wasteful number, since it uses less digits than its factorization.

6255997500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 834160 (or 834143 counting only the distinct ones).

The product of its (nonzero) digits is 850500, while the sum is 48.

The square root of 6255997500 is about 79094.8639293349. The cubic root of 6255997500 is about 1842.6047603930.

The spelling of 6255997500 in words is "six billion, two hundred fifty-five million, nine hundred ninety-seven thousand, five hundred".