2529564720 has 80 divisors (see below), whose sum is σ = 7853803872. Its totient is φ = 673505280.

The previous prime is 2529564707. The next prime is 2529564721. The reversal of 2529564720 is 274659252.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (2529564721) 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, 153690 + ... + 169350.

Almost surely, 2^2529564720 is an apocalyptic number.

2529564720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2529564720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3926901936).

2529564720 is an abundant number, since it is smaller than the sum of its proper divisors (5324239152).

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

2529564720 is a wasteful number, since it uses less digits than its factorization.

2529564720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16350 (or 16344 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 42.

The square root of 2529564720 is about 50294.7782577874. The cubic root of 2529564720 is about 1362.5379224638.

The spelling of 2529564720 in words is "two billion, five hundred twenty-nine million, five hundred sixty-four thousand, seven hundred twenty".