525320527 has 4 divisors (see below), whose sum is σ = 525840120. Its totient is φ = 524800936.

The previous prime is 525320489. The next prime is 525320539. The reversal of 525320527 is 725023525.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-525320527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525320557) 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, 258277 + ... + 260302.

It is an arithmetic number, because the mean of its divisors is an integer number (131460030).

Almost surely, 2^525320527 is an apocalyptic number.

525320527 is a deficient number, since it is larger than the sum of its proper divisors (519593).

525320527 is a wasteful number, since it uses less digits than its factorization.

525320527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519592.

The product of its (nonzero) digits is 21000, while the sum is 31.

The square root of 525320527 is about 22919.8718800957. The cubic root of 525320527 is about 806.8784634043.

The spelling of 525320527 in words is "five hundred twenty-five million, three hundred twenty thousand, five hundred twenty-seven".