63245631 has 4 divisors (see below), whose sum is σ = 84327512. Its totient is φ = 42163752.

The previous prime is 63245629. The next prime is 63245641. The reversal of 63245631 is 13654236.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 63245631 - 2¹ = 63245629 is a prime.

It is a super-2 number, since 2×63245631² = 8000019681176322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63245641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10540936 + ... + 10540941.

It is an arithmetic number, because the mean of its divisors is an integer number (21081878).

Almost surely, 2^63245631 is an apocalyptic number.

63245631 is a deficient number, since it is larger than the sum of its proper divisors (21081881).

63245631 is a wasteful number, since it uses less digits than its factorization.

63245631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21081880.

The product of its digits is 12960, while the sum is 30.

The square root of 63245631 is about 7952.7121788733. The cubic root of 63245631 is about 398.4221823285.

Adding to 63245631 its reverse (13654236), we get a palindrome (76899867).

The spelling of 63245631 in words is "sixty-three million, two hundred forty-five thousand, six hundred thirty-one".