55825613 has 8 divisors (see below), whose sum is σ = 57138048. Its totient is φ = 54518464.

The previous prime is 55825579. The next prime is 55825621. The reversal of 55825613 is 31652855.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55825613 - 2¹⁰ = 55824589 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55825633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26870 + ... + 28872.

It is an arithmetic number, because the mean of its divisors is an integer number (7142256).

Almost surely, 2^55825613 is an apocalyptic number.

It is an amenable number.

55825613 is a deficient number, since it is larger than the sum of its proper divisors (1312435).

55825613 is a wasteful number, since it uses less digits than its factorization.

55825613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2643.

The product of its digits is 36000, while the sum is 35.

The square root of 55825613 is about 7471.6539668269. The cubic root of 55825613 is about 382.1886922650.

The spelling of 55825613 in words is "fifty-five million, eight hundred twenty-five thousand, six hundred thirteen".