655527480 has 128 divisors (see below), whose sum is σ = 2090188800. Its totient is φ = 163899392.

The previous prime is 655527473. The next prime is 655527487. The reversal of 655527480 is 84725556.

It is an interprime number because it is at equal distance from previous prime (655527473) and next prime (655527487).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655527487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 780901 + ... + 781739.

It is an arithmetic number, because the mean of its divisors is an integer number (16329600).

Almost surely, 2^655527480 is an apocalyptic number.

655527480 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 655527480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1045094400).

655527480 is an abundant number, since it is smaller than the sum of its proper divisors (1434661320).

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

655527480 is a wasteful number, since it uses less digits than its factorization.

655527480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1253 (or 1249 counting only the distinct ones).

The product of its (nonzero) digits is 336000, while the sum is 42.

The square root of 655527480 is about 25603.2708847913. The cubic root of 655527480 is about 868.6876236291.

The spelling of 655527480 in words is "six hundred fifty-five million, five hundred twenty-seven thousand, four hundred eighty".