55237417 has 2 divisors, whose sum is σ = 55237418. Its totient is φ = 55237416.

The previous prime is 55237387. The next prime is 55237423. The reversal of 55237417 is 71473255.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47279376 + 7958041 = 6876^2 + 2821^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55237417 is a prime.

It is not a weakly prime, because it can be changed into another prime (55237447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27618708 + 27618709.

It is an arithmetic number, because the mean of its divisors is an integer number (27618709).

Almost surely, 2^55237417 is an apocalyptic number.

It is an amenable number.

55237417 is a deficient number, since it is larger than the sum of its proper divisors (1).

55237417 is an equidigital number, since it uses as much as digits as its factorization.

55237417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29400, while the sum is 34.

The square root of 55237417 is about 7432.1879012845. The cubic root of 55237417 is about 380.8416639653.

The spelling of 55237417 in words is "fifty-five million, two hundred thirty-seven thousand, four hundred seventeen".