63572741 has 4 divisors (see below), whose sum is σ = 67312332. Its totient is φ = 59833152.

The previous prime is 63572737. The next prime is 63572753. The reversal of 63572741 is 14727536.

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

It can be written as a sum of positive squares in 2 ways, for example, as 56942116 + 6630625 = 7546^2 + 2575^2 .

It is a cyclic number.

It is not a de Polignac number, because 63572741 - 2² = 63572737 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63572701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1869770 + ... + 1869803.

It is an arithmetic number, because the mean of its divisors is an integer number (16828083).

Almost surely, 2^63572741 is an apocalyptic number.

It is an amenable number.

63572741 is a deficient number, since it is larger than the sum of its proper divisors (3739591).

63572741 is a wasteful number, since it uses less digits than its factorization.

63572741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3739590.

The product of its digits is 35280, while the sum is 35.

The square root of 63572741 is about 7973.2515951775. The cubic root of 63572741 is about 399.1078889070.

The spelling of 63572741 in words is "sixty-three million, five hundred seventy-two thousand, seven hundred forty-one".