557750138 has 32 divisors (see below), whose sum is σ = 956292480. Its totient is φ = 241500160.

The previous prime is 557750131. The next prime is 557750147. The reversal of 557750138 is 831057755.

It is a super-2 number, since 2×557750138² = 622170432878038088, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 557750095 and 557750104.

It is not an unprimeable number, because it can be changed into a prime (557750131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127898 + ... + 132186.

It is an arithmetic number, because the mean of its divisors is an integer number (29884140).

Almost surely, 2^557750138 is an apocalyptic number.

557750138 is a deficient number, since it is larger than the sum of its proper divisors (398542342).

557750138 is a wasteful number, since it uses less digits than its factorization.

557750138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4582.

The product of its (nonzero) digits is 147000, while the sum is 41.

The square root of 557750138 is about 23616.7342788964. The cubic root of 557750138 is about 823.1517303777.

The spelling of 557750138 in words is "five hundred fifty-seven million, seven hundred fifty thousand, one hundred thirty-eight".