63253657 has 4 divisors (see below), whose sum is σ = 66003840. Its totient is φ = 60503476.

The previous prime is 63253621. The next prime is 63253691. The reversal of 63253657 is 75635236.

It is a happy number.

63253657 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 63253657 - 2¹¹ = 63251609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63253607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1375057 + ... + 1375102.

It is an arithmetic number, because the mean of its divisors is an integer number (16500960).

Almost surely, 2^63253657 is an apocalyptic number.

It is an amenable number.

63253657 is a deficient number, since it is larger than the sum of its proper divisors (2750183).

63253657 is a wasteful number, since it uses less digits than its factorization.

63253657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2750182.

The product of its digits is 113400, while the sum is 37.

The square root of 63253657 is about 7953.2167705904. The cubic root of 63253657 is about 398.4390351457.

It can be divided in two parts, 632 and 53657, that added together give a square (54289 = 233²).

The spelling of 63253657 in words is "sixty-three million, two hundred fifty-three thousand, six hundred fifty-seven".