55287497 has 2 divisors, whose sum is σ = 55287498. Its totient is φ = 55287496.

The previous prime is 55287467. The next prime is 55287527. The reversal of 55287497 is 79478255.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (55287467) and next prime (55287527).

It can be written as a sum of positive squares in only one way, i.e., 36529936 + 18757561 = 6044^2 + 4331^2 .

It is a cyclic number.

It is not a de Polignac number, because 55287497 - 2¹² = 55283401 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55287437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27643748 + 27643749.

It is an arithmetic number, because the mean of its divisors is an integer number (27643749).

Almost surely, 2^55287497 is an apocalyptic number.

It is an amenable number.

55287497 is a deficient number, since it is larger than the sum of its proper divisors (1).

55287497 is an equidigital number, since it uses as much as digits as its factorization.

55287497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 705600, while the sum is 47.

The square root of 55287497 is about 7435.5562670186. The cubic root of 55287497 is about 380.9567235906.

The spelling of 55287497 in words is "fifty-five million, two hundred eighty-seven thousand, four hundred ninety-seven".