80257538 has 4 divisors (see below), whose sum is σ = 120386310. Its totient is φ = 40128768.

The previous prime is 80257537. The next prime is 80257547. The reversal of 80257538 is 83575208.

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., 60481729 + 19775809 = 7777^2 + 4447^2 .

It is not an unprimeable number, because it can be changed into a prime (80257537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20064383 + ... + 20064386.

Almost surely, 2^80257538 is an apocalyptic number.

80257538 is a deficient number, since it is larger than the sum of its proper divisors (40128772).

80257538 is a wasteful number, since it uses less digits than its factorization.

80257538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40128771.

The product of its (nonzero) digits is 67200, while the sum is 38.

The square root of 80257538 is about 8958.6571538373. The cubic root of 80257538 is about 431.3488167309.

The spelling of 80257538 in words is "eighty million, two hundred fifty-seven thousand, five hundred thirty-eight".