55140336 has 30 divisors (see below), whose sum is σ = 154316760. Its totient is φ = 18380064.

The previous prime is 55140311. The next prime is 55140347. The reversal of 55140336 is 63304155.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 191316 + ... + 191603.

It is an arithmetic number, because the mean of its divisors is an integer number (5143892).

Almost surely, 2^55140336 is an apocalyptic number.

It is an amenable number.

55140336 is an abundant number, since it is smaller than the sum of its proper divisors (99176424).

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

55140336 is a wasteful number, since it uses less digits than its factorization.

55140336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382933 (or 382924 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 55140336 is about 7425.6539105994. The cubic root of 55140336 is about 380.6184205387.

The spelling of 55140336 in words is "fifty-five million, one hundred forty thousand, three hundred thirty-six".