538041857 has 4 divisors (see below), whose sum is σ = 569691396. Its totient is φ = 506392320.

The previous prime is 538041851. The next prime is 538041871. The reversal of 538041857 is 758140835.

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

It can be written as a sum of positive squares in 2 ways, for example, as 326019136 + 212022721 = 18056^2 + 14561^2 .

It is a cyclic number.

It is not a de Polignac number, because 538041857 - 2¹⁶ = 537976321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (538041851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15824744 + ... + 15824777.

It is an arithmetic number, because the mean of its divisors is an integer number (142422849).

Almost surely, 2^538041857 is an apocalyptic number.

It is an amenable number.

538041857 is a deficient number, since it is larger than the sum of its proper divisors (31649539).

538041857 is a wasteful number, since it uses less digits than its factorization.

538041857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31649538.

The product of its (nonzero) digits is 134400, while the sum is 41.

The square root of 538041857 is about 23195.7292836418. The cubic root of 538041857 is about 813.3397932204.

The spelling of 538041857 in words is "five hundred thirty-eight million, forty-one thousand, eight hundred fifty-seven".