538087550 has 144 divisors (see below), whose sum is σ = 1352806272. Its totient is φ = 154627200.

The previous prime is 538087549. The next prime is 538087579. The reversal of 538087550 is 55780835.

It is a super-2 number, since 2×538087550² = 579076422930005000, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 538087498 and 538087507.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 650237 + ... + 651063.

It is an arithmetic number, because the mean of its divisors is an integer number (9394488).

Almost surely, 2^538087550 is an apocalyptic number.

538087550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

538087550 is an abundant number, since it is smaller than the sum of its proper divisors (814718722).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

538087550 is a wasteful number, since it uses less digits than its factorization.

538087550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 883 (or 865 counting only the distinct ones).

The product of its (nonzero) digits is 168000, while the sum is 41.

The square root of 538087550 is about 23196.7142069734. The cubic root of 538087550 is about 813.3628167595.

The spelling of 538087550 in words is "five hundred thirty-eight million, eighty-seven thousand, five hundred fifty".