525225107520 has 448 divisors, whose sum is σ = 2047182128640. Its totient is φ = 126089035776.

The previous prime is 525225107467. The next prime is 525225107531. The reversal of 525225107520 is 25701522525.

525225107520 is a `hidden beast` number, since 5 + 2 + 5 + 2 + 25 + 107 + 520 = 666.

It is a super-2 number, since 2×525225107520² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3300504 + ... + 3455976.

Almost surely, 2^525225107520 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 525225107520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1023591064320).

525225107520 is an abundant number, since it is smaller than the sum of its proper divisors (1521957021120).

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

525225107520 is a wasteful number, since it uses less digits than its factorization.

525225107520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155539 (or 155523 counting only the distinct ones).

The product of its (nonzero) digits is 70000, while the sum is 36.

The spelling of 525225107520 in words is "five hundred twenty-five billion, two hundred twenty-five million, one hundred seven thousand, five hundred twenty".