525531345 has 16 divisors (see below), whose sum is σ = 841218432. Its totient is φ = 280160640.

The previous prime is 525531341. The next prime is 525531373. The reversal of 525531345 is 543135525.

It is a happy number.

It is not a de Polignac number, because 525531345 - 2² = 525531341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (525531341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35589 + ... + 48141.

It is an arithmetic number, because the mean of its divisors is an integer number (52576152).

Almost surely, 2^525531345 is an apocalyptic number.

It is an amenable number.

525531345 is a deficient number, since it is larger than the sum of its proper divisors (315687087).

525531345 is a wasteful number, since it uses less digits than its factorization.

525531345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15352.

The product of its digits is 45000, while the sum is 33.

The square root of 525531345 is about 22924.4704409938. The cubic root of 525531345 is about 806.9863859299.

The spelling of 525531345 in words is "five hundred twenty-five million, five hundred thirty-one thousand, three hundred forty-five".