52261463644 has 24 divisors (see below), whose sum is σ = 101889063360. Its totient is φ = 23288927424.

The previous prime is 52261463641. The next prime is 52261463647. The reversal of 52261463644 is 44636416225.

It is an interprime number because it is at equal distance from previous prime (52261463641) and next prime (52261463647).

It is a self number, because there is not a number n which added to its sum of digits gives 52261463644.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52261463641) 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, 17326564 + ... + 17329579.

It is an arithmetic number, because the mean of its divisors is an integer number (4245377640).

Almost surely, 2^52261463644 is an apocalyptic number.

It is an amenable number.

52261463644 is a deficient number, since it is larger than the sum of its proper divisors (49627599716).

52261463644 is a wasteful number, since it uses less digits than its factorization.

52261463644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34656189 (or 34656187 counting only the distinct ones).

The product of its digits is 829440, while the sum is 43.

Adding to 52261463644 its reverse (44636416225), we get a palindrome (96897879869).

The spelling of 52261463644 in words is "fifty-two billion, two hundred sixty-one million, four hundred sixty-three thousand, six hundred forty-four".