525532642 has 4 divisors (see below), whose sum is σ = 788298966. Its totient is φ = 262766320.

The previous prime is 525532639. The next prime is 525532643. The reversal of 525532642 is 246235525.

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

It can be written as a sum of positive squares in only one way, i.e., 415303641 + 110229001 = 20379^2 + 10499^2 .

It is a junction number, because it is equal to n+sod(n) for n = 525532598 and 525532607.

It is not an unprimeable number, because it can be changed into a prime (525532643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131383159 + ... + 131383162.

Almost surely, 2^525532642 is an apocalyptic number.

525532642 is a deficient number, since it is larger than the sum of its proper divisors (262766324).

525532642 is a wasteful number, since it uses less digits than its factorization.

525532642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262766323.

The product of its digits is 72000, while the sum is 34.

The square root of 525532642 is about 22924.4987295251. The cubic root of 525532642 is about 806.9870498043.

The spelling of 525532642 in words is "five hundred twenty-five million, five hundred thirty-two thousand, six hundred forty-two".