55151238 has 32 divisors (see below), whose sum is σ = 114912000. Its totient is φ = 17629920.

The previous prime is 55151237. The next prime is 55151267. The reversal of 55151238 is 83215155.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55151237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14013 + ... + 17511.

It is an arithmetic number, because the mean of its divisors is an integer number (3591000).

Almost surely, 2^55151238 is an apocalyptic number.

55151238 is an abundant number, since it is smaller than the sum of its proper divisors (59760762).

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

55151238 is a wasteful number, since it uses less digits than its factorization.

55151238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3612.

The product of its digits is 6000, while the sum is 30.

The square root of 55151238 is about 7426.3879510836. The cubic root of 55151238 is about 380.6435033781.

The spelling of 55151238 in words is "fifty-five million, one hundred fifty-one thousand, two hundred thirty-eight".