525055987 has 4 divisors (see below), whose sum is σ = 527544616. Its totient is φ = 522567360.

The previous prime is 525055981. The next prime is 525055997. The reversal of 525055987 is 789550525.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 525055987 - 2¹⁹ = 524531699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (525055981) 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, 1243998 + ... + 1244419.

It is an arithmetic number, because the mean of its divisors is an integer number (131886154).

Almost surely, 2^525055987 is an apocalyptic number.

525055987 is a deficient number, since it is larger than the sum of its proper divisors (2488629).

525055987 is a wasteful number, since it uses less digits than its factorization.

525055987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2488628.

The product of its (nonzero) digits is 630000, while the sum is 46.

The square root of 525055987 is about 22914.1001787109. The cubic root of 525055987 is about 806.7429985103.

The spelling of 525055987 in words is "five hundred twenty-five million, fifty-five thousand, nine hundred eighty-seven".