55241357 has 2 divisors, whose sum is σ = 55241358. Its totient is φ = 55241356.

The previous prime is 55241327. The next prime is 55241393. The reversal of 55241357 is 75314255.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51423241 + 3818116 = 7171^2 + 1954^2 .

It is a cyclic number.

It is not a de Polignac number, because 55241357 - 2¹² = 55237261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55241327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27620678 + 27620679.

It is an arithmetic number, because the mean of its divisors is an integer number (27620679).

Almost surely, 2^55241357 is an apocalyptic number.

It is an amenable number.

55241357 is a deficient number, since it is larger than the sum of its proper divisors (1).

55241357 is an equidigital number, since it uses as much as digits as its factorization.

55241357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21000, while the sum is 32.

The square root of 55241357 is about 7432.4529598242. The cubic root of 55241357 is about 380.8507187001.

The spelling of 55241357 in words is "fifty-five million, two hundred forty-one thousand, three hundred fifty-seven".