655526388 has 48 divisors (see below), whose sum is σ = 1685847744. Its totient is φ = 196592640.

The previous prime is 655526387. The next prime is 655526393. The reversal of 655526388 is 883625556.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655526387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12795 + ... + 38402.

It is an arithmetic number, because the mean of its divisors is an integer number (35121828).

Almost surely, 2^655526388 is an apocalyptic number.

It is an amenable number.

655526388 is an abundant number, since it is smaller than the sum of its proper divisors (1030321356).

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

655526388 is a wasteful number, since it uses less digits than its factorization.

655526388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51312 (or 51310 counting only the distinct ones).

The product of its digits is 1728000, while the sum is 48.

The square root of 655526388 is about 25603.2495593821. The cubic root of 655526388 is about 868.6871412657.

The spelling of 655526388 in words is "six hundred fifty-five million, five hundred twenty-six thousand, three hundred eighty-eight".