55202237 has 2 divisors, whose sum is σ = 55202238. Its totient is φ = 55202236.

The previous prime is 55202233. The next prime is 55202243. The reversal of 55202237 is 73220255.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33570436 + 21631801 = 5794^2 + 4651^2 .

It is a cyclic number.

It is not a de Polignac number, because 55202237 - 2² = 55202233 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55202233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27601118 + 27601119.

It is an arithmetic number, because the mean of its divisors is an integer number (27601119).

Almost surely, 2^55202237 is an apocalyptic number.

It is an amenable number.

55202237 is a deficient number, since it is larger than the sum of its proper divisors (1).

55202237 is an equidigital number, since it uses as much as digits as its factorization.

55202237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4200, while the sum is 26.

The square root of 55202237 is about 7429.8207919169. The cubic root of 55202237 is about 380.7607957434.

The spelling of 55202237 in words is "fifty-five million, two hundred two thousand, two hundred thirty-seven".