525665042 has 24 divisors (see below), whose sum is σ = 918026496. Its totient is φ = 225089928.

The previous prime is 525664987. The next prime is 525665051. The reversal of 525665042 is 240566525.

It is a junction number, because it is equal to n+sod(n) for n = 525664993 and 525665011.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 208763 + ... + 211265.

It is an arithmetic number, because the mean of its divisors is an integer number (38251104).

Almost surely, 2^525665042 is an apocalyptic number.

525665042 is a deficient number, since it is larger than the sum of its proper divisors (392361454).

525665042 is a wasteful number, since it uses less digits than its factorization.

525665042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4662 (or 4655 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 35.

The square root of 525665042 is about 22927.3862880181. The cubic root of 525665042 is about 807.0548135075.

The spelling of 525665042 in words is "five hundred twenty-five million, six hundred sixty-five thousand, forty-two".