55241211551 has 2 divisors, whose sum is σ = 55241211552. Its totient is φ = 55241211550.

The previous prime is 55241211541. The next prime is 55241211559. The reversal of 55241211551 is 15511214255.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55241211551 - 2²² = 55237017247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55241211559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27620605775 + 27620605776.

It is an arithmetic number, because the mean of its divisors is an integer number (27620605776).

Almost surely, 2^55241211551 is an apocalyptic number.

55241211551 is a deficient number, since it is larger than the sum of its proper divisors (1).

55241211551 is an equidigital number, since it uses as much as digits as its factorization.

55241211551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10000, while the sum is 32.

The spelling of 55241211551 in words is "fifty-five billion, two hundred forty-one million, two hundred eleven thousand, five hundred fifty-one".