55392605 has 4 divisors (see below), whose sum is σ = 66471132. Its totient is φ = 44314080.

The previous prime is 55392587. The next prime is 55392653. The reversal of 55392605 is 50629355.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 36409156 + 18983449 = 6034^2 + 4357^2 .

It is not a de Polignac number, because 55392605 - 2¹⁴ = 55376221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5539256 + ... + 5539265.

It is an arithmetic number, because the mean of its divisors is an integer number (16617783).

Almost surely, 2^55392605 is an apocalyptic number.

It is an amenable number.

55392605 is a deficient number, since it is larger than the sum of its proper divisors (11078527).

55392605 is a wasteful number, since it uses less digits than its factorization.

55392605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11078526.

The product of its (nonzero) digits is 40500, while the sum is 35.

The square root of 55392605 is about 7442.6208421496. The cubic root of 55392605 is about 381.1979851998.

The spelling of 55392605 in words is "fifty-five million, three hundred ninety-two thousand, six hundred five".