525448278648 has 24 divisors (see below), whose sum is σ = 1423089088200. Its totient is φ = 175149426192.

The previous prime is 525448278647. The next prime is 525448278653. The reversal of 525448278648 is 846872844525.

It is a happy number.

525448278648 is a `hidden beast` number, since 5 + 2 + 544 + 8 + 2 + 7 + 86 + 4 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525448278647) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3648946308 + ... + 3648946451.

It is an arithmetic number, because the mean of its divisors is an integer number (59295378675).

Almost surely, 2^525448278648 is an apocalyptic number.

It is an amenable number.

525448278648 is an abundant number, since it is smaller than the sum of its proper divisors (897640809552).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

525448278648 is a wasteful number, since it uses less digits than its factorization.

525448278648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7297892771 (or 7297892764 counting only the distinct ones).

The product of its digits is 137625600, while the sum is 63.

The spelling of 525448278648 in words is "five hundred twenty-five billion, four hundred forty-eight million, two hundred seventy-eight thousand, six hundred forty-eight".