538618355 has 32 divisors (see below), whose sum is σ = 727584768. Its totient is φ = 379408000.

The previous prime is 538618337. The next prime is 538618391. The reversal of 538618355 is 553816835.

It is not a de Polignac number, because 538618355 - 2²⁴ = 521841139 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 260054 + ... + 262116.

It is an arithmetic number, because the mean of its divisors is an integer number (22737024).

Almost surely, 2^538618355 is an apocalyptic number.

538618355 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

538618355 is a deficient number, since it is larger than the sum of its proper divisors (188966413).

538618355 is a wasteful number, since it uses less digits than its factorization.

538618355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2227.

The product of its digits is 432000, while the sum is 44.

The square root of 538618355 is about 23208.1527700935. The cubic root of 538618355 is about 813.6301804150.

The spelling of 538618355 in words is "five hundred thirty-eight million, six hundred eighteen thousand, three hundred fifty-five".