525528780 has 48 divisors (see below), whose sum is σ = 1681693440. Its totient is φ = 120120768.

The previous prime is 525528779. The next prime is 525528781. The reversal of 525528780 is 87825525.

525528780 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (525528779) and next prime (525528781).

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (525528781) 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, 625210 + ... + 626049.

It is an arithmetic number, because the mean of its divisors is an integer number (35035280).

Almost surely, 2^525528780 is an apocalyptic number.

It is an amenable number.

525528780 is an abundant number, since it is smaller than the sum of its proper divisors (1156164660).

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

525528780 is a wasteful number, since it uses less digits than its factorization.

525528780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1251278 (or 1251276 counting only the distinct ones).

The product of its (nonzero) digits is 224000, while the sum is 42.

The square root of 525528780 is about 22924.4144963399. The cubic root of 525528780 is about 806.9850730215.

The spelling of 525528780 in words is "five hundred twenty-five million, five hundred twenty-eight thousand, seven hundred eighty".