663525030 has 64 divisors (see below), whose sum is σ = 1915752960. Its totient is φ = 143679744.

The previous prime is 663525013. The next prime is 663525043. The reversal of 663525030 is 30525366.

663525030 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 (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79159 + ... + 87138.

It is an arithmetic number, because the mean of its divisors is an integer number (29933640).

Almost surely, 2^663525030 is an apocalyptic number.

663525030 is an abundant number, since it is smaller than the sum of its proper divisors (1252227930).

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

663525030 is a wasteful number, since it uses less digits than its factorization.

663525030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166333.

The product of its (nonzero) digits is 16200, while the sum is 30.

The square root of 663525030 is about 25758.9795993553. The cubic root of 663525030 is about 872.2060673318.

The spelling of 663525030 in words is "six hundred sixty-three million, five hundred twenty-five thousand, thirty".