120055531 has 8 divisors (see below), whose sum is σ = 123369984. Its totient is φ = 116772840.

The previous prime is 120055517. The next prime is 120055549. The reversal of 120055531 is 135550021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 120055531 - 2⁵ = 120055499 is a prime.

It is a super-2 number, since 2×120055531² = 28826661047383922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120059531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175 + ... + 15496.

It is an arithmetic number, because the mean of its divisors is an integer number (15421248).

Almost surely, 2^120055531 is an apocalyptic number.

120055531 is a deficient number, since it is larger than the sum of its proper divisors (3314453).

120055531 is a wasteful number, since it uses less digits than its factorization.

120055531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15881.

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 120055531 is about 10956.9854887191. The cubic root of 120055531 is about 493.3184871456.

The spelling of 120055531 in words is "one hundred twenty million, fifty-five thousand, five hundred thirty-one".