55507270549 has 2 divisors, whose sum is σ = 55507270550. Its totient is φ = 55507270548.

The previous prime is 55507270541. The next prime is 55507270573. The reversal of 55507270549 is 94507270555.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30072762225 + 25434508324 = 173415^2 + 159482^2 .

It is a cyclic number.

It is not a de Polignac number, because 55507270549 - 2³ = 55507270541 is a prime.

It is a super-2 number, since 2×55507270549² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55507270541) 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, 27753635274 + 27753635275.

It is an arithmetic number, because the mean of its divisors is an integer number (27753635275).

Almost surely, 2^55507270549 is an apocalyptic number.

It is an amenable number.

55507270549 is a deficient number, since it is larger than the sum of its proper divisors (1).

55507270549 is an equidigital number, since it uses as much as digits as its factorization.

55507270549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2205000, while the sum is 49.

The spelling of 55507270549 in words is "fifty-five billion, five hundred seven million, two hundred seventy thousand, five hundred forty-nine".