55239607 has 2 divisors, whose sum is σ = 55239608. Its totient is φ = 55239606.

The previous prime is 55239529. The next prime is 55239637. The reversal of 55239607 is 70693255.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55239607 - 2¹⁵ = 55206839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55239637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27619803 + 27619804.

It is an arithmetic number, because the mean of its divisors is an integer number (27619804).

Almost surely, 2^55239607 is an apocalyptic number.

55239607 is a deficient number, since it is larger than the sum of its proper divisors (1).

55239607 is an equidigital number, since it uses as much as digits as its factorization.

55239607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56700, while the sum is 37.

The square root of 55239607 is about 7432.3352319443. The cubic root of 55239607 is about 380.8466969802.

The spelling of 55239607 in words is "fifty-five million, two hundred thirty-nine thousand, six hundred seven".