55808253 has 12 divisors (see below), whose sum is σ = 81815968. Its totient is φ = 36649800.

The previous prime is 55808239. The next prime is 55808303. The reversal of 55808253 is 35280855.

It is not a de Polignac number, because 55808253 - 2⁴ = 55808237 is a prime.

It is a super-2 number, since 2×55808253² = 6229122205824018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55808653) 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, 45673 + ... + 46878.

Almost surely, 2^55808253 is an apocalyptic number.

It is an amenable number.

55808253 is a deficient number, since it is larger than the sum of its proper divisors (26007715).

55808253 is a wasteful number, since it uses less digits than its factorization.

55808253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92624 (or 92621 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

The square root of 55808253 is about 7470.4921524622. The cubic root of 55808253 is about 382.1490719593.

The spelling of 55808253 in words is "fifty-five million, eight hundred eight thousand, two hundred fifty-three".