663025055 has 64 divisors (see below), whose sum is σ = 1039343616. Its totient is φ = 393984000.

The previous prime is 663025049. The next prime is 663025061. The reversal of 663025055 is 550520366.

It is an interprime number because it is at equal distance from previous prime (663025049) and next prime (663025061).

It is not a de Polignac number, because 663025055 - 2⁴ = 663025039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 870875 + ... + 871635.

It is an arithmetic number, because the mean of its divisors is an integer number (16239744).

Almost surely, 2^663025055 is an apocalyptic number.

663025055 is a deficient number, since it is larger than the sum of its proper divisors (376318561).

663025055 is a wasteful number, since it uses less digits than its factorization.

663025055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 888.

The product of its (nonzero) digits is 27000, while the sum is 32.

The square root of 663025055 is about 25749.2729023559. The cubic root of 663025055 is about 871.9869392981.

The spelling of 663025055 in words is "six hundred sixty-three million, twenty-five thousand, fifty-five".