55808748 has 18 divisors (see below), whose sum is σ = 141072204. Its totient is φ = 18602904.

The previous prime is 55808743. The next prime is 55808777. The reversal of 55808748 is 84780855.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×55808748² = 6229232706655008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55808743) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 775086 + ... + 775157.

Almost surely, 2^55808748 is an apocalyptic number.

It is an amenable number.

55808748 is an abundant number, since it is smaller than the sum of its proper divisors (85263456).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55808748 is a wasteful number, since it uses less digits than its factorization.

55808748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1550253 (or 1550248 counting only the distinct ones).

The product of its (nonzero) digits is 358400, while the sum is 45.

The square root of 55808748 is about 7470.5252827361. The cubic root of 55808748 is about 382.1502017995.

The spelling of 55808748 in words is "fifty-five million, eight hundred eight thousand, seven hundred forty-eight".