538881375 has 64 divisors (see below), whose sum is σ = 958104576. Its totient is φ = 268329600.

The previous prime is 538881373. The next prime is 538881377. The reversal of 538881375 is 573188835.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (538881373) and next prime (538881377).

It is not a de Polignac number, because 538881375 - 2¹ = 538881373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538881373) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 370149 + ... + 371601.

It is an arithmetic number, because the mean of its divisors is an integer number (14970384).

Almost surely, 2^538881375 is an apocalyptic number.

538881375 is a deficient number, since it is larger than the sum of its proper divisors (419223201).

538881375 is a wasteful number, since it uses less digits than its factorization.

538881375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1537 (or 1527 counting only the distinct ones).

The product of its digits is 806400, while the sum is 48.

The square root of 538881375 is about 23213.8186216745. The cubic root of 538881375 is about 813.7625971089.

The spelling of 538881375 in words is "five hundred thirty-eight million, eight hundred eighty-one thousand, three hundred seventy-five".