55225747 has 2 divisors, whose sum is σ = 55225748. Its totient is φ = 55225746.

The previous prime is 55225739. The next prime is 55225757. The reversal of 55225747 is 74752255.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55225747 - 2³ = 55225739 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55225757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27612873 + 27612874.

It is an arithmetic number, because the mean of its divisors is an integer number (27612874).

Almost surely, 2^55225747 is an apocalyptic number.

55225747 is a deficient number, since it is larger than the sum of its proper divisors (1).

55225747 is an equidigital number, since it uses as much as digits as its factorization.

55225747 is an evil number, because the sum of its binary digits is even.

The product of its digits is 98000, while the sum is 37.

The square root of 55225747 is about 7431.4027612558. The cubic root of 55225747 is about 380.8148419578.

The spelling of 55225747 in words is "fifty-five million, two hundred twenty-five thousand, seven hundred forty-seven".