63397425 has 72 divisors (see below), whose sum is σ = 131408256. Its totient is φ = 26732160.

The previous prime is 63397417. The next prime is 63397441. The reversal of 63397425 is 52479336.

It is not a de Polignac number, because 63397425 - 2³ = 63397417 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 47112 + ... + 48438.

Almost surely, 2^63397425 is an apocalyptic number.

63397425 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

63397425 is an abundant number, since it is smaller than the sum of its proper divisors (68010831).

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

63397425 is a wasteful number, since it uses less digits than its factorization.

63397425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1367 (or 1355 counting only the distinct ones).

The product of its digits is 136080, while the sum is 39.

The square root of 63397425 is about 7962.2499960752. The cubic root of 63397425 is about 398.7406748277.

The spelling of 63397425 in words is "sixty-three million, three hundred ninety-seven thousand, four hundred twenty-five".