55542952237 has 2 divisors, whose sum is σ = 55542952238. Its totient is φ = 55542952236.

The previous prime is 55542952219. The next prime is 55542952249. The reversal of 55542952237 is 73225924555.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39034300041 + 16508652196 = 197571^2 + 128486^2 .

It is a cyclic number.

It is not a de Polignac number, because 55542952237 - 2¹⁹ = 55542427949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55542952277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27771476118 + 27771476119.

It is an arithmetic number, because the mean of its divisors is an integer number (27771476119).

Almost surely, 2^55542952237 is an apocalyptic number.

It is an amenable number.

55542952237 is a deficient number, since it is larger than the sum of its proper divisors (1).

55542952237 is an equidigital number, since it uses as much as digits as its factorization.

55542952237 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3780000, while the sum is 49.

The spelling of 55542952237 in words is "fifty-five billion, five hundred forty-two million, nine hundred fifty-two thousand, two hundred thirty-seven".