525512542 has 4 divisors (see below), whose sum is σ = 788268816. Its totient is φ = 262756270.

The previous prime is 525512531. The next prime is 525512563. The reversal of 525512542 is 245215525.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

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, 131378134 + ... + 131378137.

It is an arithmetic number, because the mean of its divisors is an integer number (197067204).

Almost surely, 2^525512542 is an apocalyptic number.

525512542 is a deficient number, since it is larger than the sum of its proper divisors (262756274).

525512542 is a wasteful number, since it uses less digits than its factorization.

525512542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262756273.

The product of its digits is 20000, while the sum is 31.

The square root of 525512542 is about 22924.0603297060. The cubic root of 525512542 is about 806.9767614193.

The spelling of 525512542 in words is "five hundred twenty-five million, five hundred twelve thousand, five hundred forty-two".