670255520 has 96 divisors (see below), whose sum is σ = 1736017920. Its totient is φ = 242519040.

The previous prime is 670255519. The next prime is 670255541. The reversal of 670255520 is 25552076.

670255520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 402209 + ... + 403871.

It is an arithmetic number, because the mean of its divisors is an integer number (18083520).

Almost surely, 2^670255520 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 670255520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (868008960).

670255520 is an abundant number, since it is smaller than the sum of its proper divisors (1065762400).

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

670255520 is a wasteful number, since it uses less digits than its factorization.

670255520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1918 (or 1910 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 32.

The square root of 670255520 is about 25889.2935399945. The cubic root of 670255520 is about 875.1452362999.

The spelling of 670255520 in words is "six hundred seventy million, two hundred fifty-five thousand, five hundred twenty".