21053150063 has 16 divisors (see below), whose sum is σ = 24259310592. Its totient is φ = 18091080000.

The previous prime is 21053150059. The next prime is 21053150071. The reversal of 21053150063 is 36005135012.

It is a cyclic number.

It is not a de Polignac number, because 21053150063 - 2² = 21053150059 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21053150023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 703238 + ... + 732563.

It is an arithmetic number, because the mean of its divisors is an integer number (1516206912).

Almost surely, 2^21053150063 is an apocalyptic number.

21053150063 is a deficient number, since it is larger than the sum of its proper divisors (3206160529).

21053150063 is a wasteful number, since it uses less digits than its factorization.

21053150063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1435886.

The product of its (nonzero) digits is 2700, while the sum is 26.

Adding to 21053150063 its reverse (36005135012), we get a palindrome (57058285075).

The spelling of 21053150063 in words is "twenty-one billion, fifty-three million, one hundred fifty thousand, sixty-three".