55780241 has 8 divisors (see below), whose sum is σ = 61622400. Its totient is φ = 50066640.

The previous prime is 55780223. The next prime is 55780243. The reversal of 55780241 is 14208755.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55780241 is a prime.

It is a super-2 number, since 2×55780241² = 6222870572036162, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55780198 and 55780207.

It is not an unprimeable number, because it can be changed into a prime (55780243) 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, 31226 + ... + 32963.

It is an arithmetic number, because the mean of its divisors is an integer number (7702800).

Almost surely, 2^55780241 is an apocalyptic number.

It is an amenable number.

55780241 is a deficient number, since it is larger than the sum of its proper divisors (5842159).

55780241 is a wasteful number, since it uses less digits than its factorization.

55780241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64279.

The product of its (nonzero) digits is 11200, while the sum is 32.

The square root of 55780241 is about 7468.6170741309. The cubic root of 55780241 is about 382.0851235242.

Adding to 55780241 its reverse (14208755), we get a palindrome (69988996).

The spelling of 55780241 in words is "fifty-five million, seven hundred eighty thousand, two hundred forty-one".