63215425 has 48 divisors (see below), whose sum is σ = 99215872. Its totient is φ = 38880000.

The previous prime is 63215381. The next prime is 63215429. The reversal of 63215425 is 52451236.

It is not a de Polignac number, because 63215425 - 2⁹ = 63214913 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 63215393 and 63215402.

It is not an unprimeable number, because it can be changed into a prime (63215429) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 83800 + ... + 84550.

Almost surely, 2^63215425 is an apocalyptic number.

63215425 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

63215425 is a deficient number, since it is larger than the sum of its proper divisors (36000447).

63215425 is a wasteful number, since it uses less digits than its factorization.

63215425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818 (or 813 counting only the distinct ones).

The product of its digits is 7200, while the sum is 28.

The square root of 63215425 is about 7950.8128515266. The cubic root of 63215425 is about 398.3587436546.

The spelling of 63215425 in words is "sixty-three million, two hundred fifteen thousand, four hundred twenty-five".