63570223 has 4 divisors (see below), whose sum is σ = 63630760. Its totient is φ = 63509688.

The previous prime is 63570209. The next prime is 63570251. The reversal of 63570223 is 32207536.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63570223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63570191 and 63570200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63570253) 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, 28665 + ... + 30802.

It is an arithmetic number, because the mean of its divisors is an integer number (15907690).

Almost surely, 2^63570223 is an apocalyptic number.

63570223 is a deficient number, since it is larger than the sum of its proper divisors (60537).

63570223 is a wasteful number, since it uses less digits than its factorization.

63570223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60536.

The product of its (nonzero) digits is 7560, while the sum is 28.

The square root of 63570223 is about 7973.0936906573. The cubic root of 63570223 is about 399.1026195262.

Adding to 63570223 its reverse (32207536), we get a palindrome (95777759).

The spelling of 63570223 in words is "sixty-three million, five hundred seventy thousand, two hundred twenty-three".