63158225 has 24 divisors (see below), whose sum is σ = 84728952. Its totient is φ = 46425600.

The previous prime is 63158171. The next prime is 63158239. The reversal of 63158225 is 52285136.

It can be written as a sum of positive squares in 12 ways, for example, as 33651601 + 29506624 = 5801^2 + 5432^2 .

It is not a de Polignac number, because 63158225 - 2¹² = 63154129 is a prime.

It is a super-2 number, since 2×63158225² = 7977922770301250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63158191 and 63158200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 120965 + ... + 121485.

It is an arithmetic number, because the mean of its divisors is an integer number (3530373).

Almost surely, 2^63158225 is an apocalyptic number.

63158225 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

63158225 is a deficient number, since it is larger than the sum of its proper divisors (21570727).

63158225 is a wasteful number, since it uses less digits than its factorization.

63158225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917 (or 912 counting only the distinct ones).

The product of its digits is 14400, while the sum is 32.

The square root of 63158225 is about 7947.2149209645. The cubic root of 63158225 is about 398.2385567635.

The spelling of 63158225 in words is "sixty-three million, one hundred fifty-eight thousand, two hundred twenty-five".