202057538 has 4 divisors (see below), whose sum is σ = 303086310. Its totient is φ = 101028768.

The previous prime is 202057519. The next prime is 202057543. The reversal of 202057538 is 835750202.

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

It can be written as a sum of positive squares in only one way, i.e., 197318209 + 4739329 = 14047^2 + 2177^2 .

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 as a sum of consecutive naturals, namely, 50514383 + ... + 50514386.

Almost surely, 2^202057538 is an apocalyptic number.

202057538 is a deficient number, since it is larger than the sum of its proper divisors (101028772).

202057538 is a wasteful number, since it uses less digits than its factorization.

202057538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101028771.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 202057538 is about 14214.6944392062. The cubic root of 202057538 is about 586.8021354832.

The spelling of 202057538 in words is "two hundred two million, fifty-seven thousand, five hundred thirty-eight".