63121325 has 12 divisors (see below), whose sum is σ = 82390560. Its totient is φ = 47838960.

The previous prime is 63121321. The next prime is 63121337. The reversal of 63121325 is 52312136.

It is not a de Polignac number, because 63121325 - 2² = 63121321 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63121325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63121321) 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, 65969 + ... + 66918.

It is an arithmetic number, because the mean of its divisors is an integer number (6865880).

Almost surely, 2^63121325 is an apocalyptic number.

It is an amenable number.

63121325 is a deficient number, since it is larger than the sum of its proper divisors (19269235).

63121325 is a wasteful number, since it uses less digits than its factorization.

63121325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132916 (or 132911 counting only the distinct ones).

The product of its digits is 1080, while the sum is 23.

The square root of 63121325 is about 7944.8930137542. The cubic root of 63121325 is about 398.1609851011.

The spelling of 63121325 in words is "sixty-three million, one hundred twenty-one thousand, three hundred twenty-five".