120554055531 has 48 divisors (see below), whose sum is σ = 221231861760. Its totient is φ = 61537682880.

The previous prime is 120554055521. The next prime is 120554055553. The reversal of 120554055531 is 135550455021.

120554055531 is a `hidden beast` number, since 1 + 2 + 0 + 554 + 0 + 55 + 53 + 1 = 666.

It is not a de Polignac number, because 120554055531 - 2¹⁴ = 120554039147 is a prime.

It is a super-2 number, since 2×120554055531² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (120554055521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2348751 + ... + 2399528.

It is an arithmetic number, because the mean of its divisors is an integer number (4608997120).

Almost surely, 2^120554055531 is an apocalyptic number.

120554055531 is a deficient number, since it is larger than the sum of its proper divisors (100677806229).

120554055531 is a wasteful number, since it uses less digits than its factorization.

120554055531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4748336 (or 4748333 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 36.

The spelling of 120554055531 in words is "one hundred twenty billion, five hundred fifty-four million, fifty-five thousand, five hundred thirty-one".