525620990 has 8 divisors (see below), whose sum is σ = 946117800. Its totient is φ = 210248392.

The previous prime is 525620987. The next prime is 525621007. The reversal of 525620990 is 99026525.

525620990 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct 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 in 3 ways as a sum of consecutive naturals, for example, 26281040 + ... + 26281059.

It is an arithmetic number, because the mean of its divisors is an integer number (118264725).

Almost surely, 2^525620990 is an apocalyptic number.

525620990 is a deficient number, since it is larger than the sum of its proper divisors (420496810).

525620990 is a wasteful number, since it uses less digits than its factorization.

525620990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52562106.

The product of its (nonzero) digits is 48600, while the sum is 38.

The square root of 525620990 is about 22926.4255827200. The cubic root of 525620990 is about 807.0322684969.

The spelling of 525620990 in words is "five hundred twenty-five million, six hundred twenty thousand, nine hundred ninety".