55437113 has 2 divisors, whose sum is σ = 55437114. Its totient is φ = 55437112.

The previous prime is 55437091. The next prime is 55437163. The reversal of 55437113 is 31173455.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40094224 + 15342889 = 6332^2 + 3917^2 .

It is a cyclic number.

It is not a de Polignac number, because 55437113 - 2¹⁰ = 55436089 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (55437163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27718556 + 27718557.

It is an arithmetic number, because the mean of its divisors is an integer number (27718557).

Almost surely, 2^55437113 is an apocalyptic number.

It is an amenable number.

55437113 is a deficient number, since it is larger than the sum of its proper divisors (1).

55437113 is an equidigital number, since it uses as much as digits as its factorization.

55437113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6300, while the sum is 29.

The square root of 55437113 is about 7445.6103174958. The cubic root of 55437113 is about 381.3000554899.

The spelling of 55437113 in words is "fifty-five million, four hundred thirty-seven thousand, one hundred thirteen".