63525164261 has 8 divisors (see below), whose sum is σ = 68505056760. Its totient is φ = 58558606272.

The previous prime is 63525164207. The next prime is 63525164279. The reversal of 63525164261 is 16246152536.

It is a happy number.

63525164261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 8499733636 + 55025430625 = 92194^2 + 234575^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63525164261 is a prime.

It is a super-2 number, since 2×63525164261² (a number of 22 digits) 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 (63525164761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3323726 + ... + 3342783.

It is an arithmetic number, because the mean of its divisors is an integer number (8563132095).

Almost surely, 2^63525164261 is an apocalyptic number.

It is an amenable number.

63525164261 is a deficient number, since it is larger than the sum of its proper divisors (4979892499).

63525164261 is a wasteful number, since it uses less digits than its factorization.

63525164261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6667255.

The product of its digits is 259200, while the sum is 41.

The spelling of 63525164261 in words is "sixty-three billion, five hundred twenty-five million, one hundred sixty-four thousand, two hundred sixty-one".