63723425 has 12 divisors (see below), whose sum is σ = 79802556. Its totient is φ = 50472000.

The previous prime is 63723391. The next prime is 63723431. The reversal of 63723425 is 52432736.

It can be written as a sum of positive squares in 6 ways, for example, as 5414929 + 58308496 = 2327^2 + 7636^2 .

It is not a de Polignac number, because 63723425 - 2¹⁰ = 63722401 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63723391 and 63723400.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10094 + ... + 15143.

It is an arithmetic number, because the mean of its divisors is an integer number (6650213).

Almost surely, 2^63723425 is an apocalyptic number.

It is an amenable number.

63723425 is a deficient number, since it is larger than the sum of its proper divisors (16079131).

63723425 is a wasteful number, since it uses less digits than its factorization.

63723425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25348 (or 25343 counting only the distinct ones).

The product of its digits is 30240, while the sum is 32.

The square root of 63723425 is about 7982.6953468111. The cubic root of 63723425 is about 399.4229700748.

The spelling of 63723425 in words is "sixty-three million, seven hundred twenty-three thousand, four hundred twenty-five".