124042550553 has 12 divisors (see below), whose sum is σ = 185808594608. Its totient is φ = 82695033540.

The previous prime is 124042550543. The next prime is 124042550573. The reversal of 124042550553 is 355055240421.

124042550553 is a `hidden beast` number, since 12 + 4 + 0 + 42 + 5 + 50 + 553 = 666.

It is not a de Polignac number, because 124042550553 - 2¹² = 124042546457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124042550503) 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 11 ways as a sum of consecutive naturals, for example, 255231343 + ... + 255231828.

Almost surely, 2^124042550553 is an apocalyptic number.

It is an amenable number.

124042550553 is a deficient number, since it is larger than the sum of its proper divisors (61766044055).

124042550553 is an frugal number, since it uses more digits than its factorization.

124042550553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510463186 (or 510463174 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 36.

Adding to 124042550553 its reverse (355055240421), we get a palindrome (479097790974).

The spelling of 124042550553 in words is "one hundred twenty-four billion, forty-two million, five hundred fifty thousand, five hundred fifty-three".