55240243001 has 2 divisors, whose sum is σ = 55240243002. Its totient is φ = 55240243000.

The previous prime is 55240242989. The next prime is 55240243007. The reversal of 55240243001 is 10034204255.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47108532025 + 8131710976 = 217045^2 + 90176^2 .

It is a cyclic number.

It is not a de Polignac number, because 55240243001 - 2³⁴ = 38060373817 is a prime.

It is not a weakly prime, because it can be changed into another prime (55240243007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27620121500 + 27620121501.

It is an arithmetic number, because the mean of its divisors is an integer number (27620121501).

Almost surely, 2^55240243001 is an apocalyptic number.

It is an amenable number.

55240243001 is a deficient number, since it is larger than the sum of its proper divisors (1).

55240243001 is an equidigital number, since it uses as much as digits as its factorization.

55240243001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4800, while the sum is 26.

Adding to 55240243001 its reverse (10034204255), we get a palindrome (65274447256).

The spelling of 55240243001 in words is "fifty-five billion, two hundred forty million, two hundred forty-three thousand, one".