63390025 has 12 divisors (see below), whose sum is σ = 83227932. Its totient is φ = 47728640.

The previous prime is 63390017. The next prime is 63390029. The reversal of 63390025 is 52009336.

It can be written as a sum of positive squares in 6 ways, for example, as 3853369 + 59536656 = 1963^2 + 7716^2 .

It is not a de Polignac number, because 63390025 - 2³ = 63390017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63389975 and 63390002.

It is not an unprimeable number, because it can be changed into a prime (63390029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74152 + ... + 75001.

It is an arithmetic number, because the mean of its divisors is an integer number (6935661).

Almost surely, 2^63390025 is an apocalyptic number.

It is an amenable number.

63390025 is a deficient number, since it is larger than the sum of its proper divisors (19837907).

63390025 is a wasteful number, since it uses less digits than its factorization.

63390025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149180 (or 149175 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 28.

The square root of 63390025 is about 7961.7852897450. The cubic root of 63390025 is about 398.7251600240.

The spelling of 63390025 in words is "sixty-three million, three hundred ninety thousand, twenty-five".