55501242 has 32 divisors (see below), whose sum is σ = 117184320. Its totient is φ = 17475840.

The previous prime is 55501211. The next prime is 55501267. The reversal of 55501242 is 24210555.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67192 + ... + 68012.

It is an arithmetic number, because the mean of its divisors is an integer number (3662010).

Almost surely, 2^55501242 is an apocalyptic number.

55501242 is an abundant number, since it is smaller than the sum of its proper divisors (61683078).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55501242 is a wasteful number, since it uses less digits than its factorization.

55501242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1438.

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 55501242 is about 7449.9155699914. The cubic root of 55501242 is about 381.4470266388.

Adding to 55501242 its reverse (24210555), we get a palindrome (79711797).

The spelling of 55501242 in words is "fifty-five million, five hundred one thousand, two hundred forty-two".