55140241 has 8 divisors (see below), whose sum is σ = 59439744. Its totient is φ = 50849040.

The previous prime is 55140229. The next prime is 55140251. The reversal of 55140241 is 14204155.

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 55140241 - 2¹⁵ = 55107473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55140221) 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, 23190 + ... + 25456.

It is an arithmetic number, because the mean of its divisors is an integer number (7429968).

Almost surely, 2^55140241 is an apocalyptic number.

It is an amenable number.

55140241 is a deficient number, since it is larger than the sum of its proper divisors (4299503).

55140241 is a wasteful number, since it uses less digits than its factorization.

55140241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4151.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 55140241 is about 7425.6475138536. The cubic root of 55140241 is about 380.6182019524.

Adding to 55140241 its reverse (14204155), we get a palindrome (69344396).

The spelling of 55140241 in words is "fifty-five million, one hundred forty thousand, two hundred forty-one".