55672237 has 2 divisors, whose sum is σ = 55672238. Its totient is φ = 55672236.

The previous prime is 55672231. The next prime is 55672283. The reversal of 55672237 is 73227655.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44342281 + 11329956 = 6659^2 + 3366^2 .

It is a cyclic number.

It is not a de Polignac number, because 55672237 - 2²³ = 47283629 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55672196 and 55672205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55672231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27836118 + 27836119.

It is an arithmetic number, because the mean of its divisors is an integer number (27836119).

Almost surely, 2^55672237 is an apocalyptic number.

It is an amenable number.

55672237 is a deficient number, since it is larger than the sum of its proper divisors (1).

55672237 is an equidigital number, since it uses as much as digits as its factorization.

55672237 is an evil number, because the sum of its binary digits is even.

The product of its digits is 88200, while the sum is 37.

The square root of 55672237 is about 7461.3830487384. The cubic root of 55672237 is about 381.8383612076.

The spelling of 55672237 in words is "fifty-five million, six hundred seventy-two thousand, two hundred thirty-seven".