525213325553 has 24 divisors (see below), whose sum is σ = 620180868384. Its totient is φ = 443392488000.

The previous prime is 525213325523. The next prime is 525213325673. The reversal of 525213325553 is 355523312525.

It is not a de Polignac number, because 525213325553 - 2²⁶ = 525146216689 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 525213325553.

It is not an unprimeable number, because it can be changed into a prime (525213325513) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34795538 + ... + 34810628.

It is an arithmetic number, because the mean of its divisors is an integer number (25840869516).

Almost surely, 2^525213325553 is an apocalyptic number.

It is an amenable number.

525213325553 is a deficient number, since it is larger than the sum of its proper divisors (94967542831).

525213325553 is a wasteful number, since it uses less digits than its factorization.

525213325553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25773 (or 25766 counting only the distinct ones).

The product of its digits is 675000, while the sum is 41.

The spelling of 525213325553 in words is "five hundred twenty-five billion, two hundred thirteen million, three hundred twenty-five thousand, five hundred fifty-three".