55840253 has 12 divisors (see below), whose sum is σ = 65395872. Its totient is φ = 47539800.

The previous prime is 55840231. The next prime is 55840261. The reversal of 55840253 is 35204855.

It is not a de Polignac number, because 55840253 - 2¹⁸ = 55578109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55870253) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3626 + ... + 11172.

It is an arithmetic number, because the mean of its divisors is an integer number (5449656).

Almost surely, 2^55840253 is an apocalyptic number.

It is an amenable number.

55840253 is a deficient number, since it is larger than the sum of its proper divisors (9555619).

55840253 is a wasteful number, since it uses less digits than its factorization.

55840253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7712 (or 7705 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 55840253 is about 7472.6336053630. The cubic root of 55840253 is about 382.2220983971. Note that the first 3 decimals are identical.

The spelling of 55840253 in words is "fifty-five million, eight hundred forty thousand, two hundred fifty-three".