525489542501 has 16 divisors (see below), whose sum is σ = 660570315648. Its totient is φ = 409472363520.

The previous prime is 525489542477. The next prime is 525489542527. The reversal of 525489542501 is 105245984525.

It is not a de Polignac number, because 525489542501 - 2¹⁸ = 525489280357 is a prime.

It is a super-2 number, since 2×525489542501² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

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 525489542501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525489542801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28191260 + ... + 28209893.

It is an arithmetic number, because the mean of its divisors is an integer number (41285644728).

Almost surely, 2^525489542501 is an apocalyptic number.

It is an amenable number.

525489542501 is a deficient number, since it is larger than the sum of its proper divisors (135080773147).

525489542501 is an equidigital number, since it uses as much as digits as its factorization.

525489542501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56401193 (or 56401171 counting only the distinct ones).

The product of its (nonzero) digits is 2880000, while the sum is 50.

The spelling of 525489542501 in words is "five hundred twenty-five billion, four hundred eighty-nine million, five hundred forty-two thousand, five hundred one".