525389980 has 12 divisors (see below), whose sum is σ = 1103319000. Its totient is φ = 210155984.

The previous prime is 525389971. The next prime is 525389987. The reversal of 525389980 is 89983525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525389987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13134730 + ... + 13134769.

It is an arithmetic number, because the mean of its divisors is an integer number (91943250).

Almost surely, 2^525389980 is an apocalyptic number.

It is an amenable number.

525389980 is an abundant number, since it is smaller than the sum of its proper divisors (577929020).

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

525389980 is a wasteful number, since it uses less digits than its factorization.

525389980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26269508 (or 26269506 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 49.

The square root of 525389980 is about 22921.3869562904. The cubic root of 525389980 is about 806.9140211623.

The spelling of 525389980 in words is "five hundred twenty-five million, three hundred eighty-nine thousand, nine hundred eighty".