55207351 has 2 divisors, whose sum is σ = 55207352. Its totient is φ = 55207350.

The previous prime is 55207343. The next prime is 55207363. The reversal of 55207351 is 15370255.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55207351 - 2³ = 55207343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55207051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27603675 + 27603676.

It is an arithmetic number, because the mean of its divisors is an integer number (27603676).

Almost surely, 2^55207351 is an apocalyptic number.

55207351 is a deficient number, since it is larger than the sum of its proper divisors (1).

55207351 is an equidigital number, since it uses as much as digits as its factorization.

55207351 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5250, while the sum is 28.

The square root of 55207351 is about 7430.1649376040. The cubic root of 55207351 is about 380.7725534226.

The spelling of 55207351 in words is "fifty-five million, two hundred seven thousand, three hundred fifty-one".