55688450 has 24 divisors (see below), whose sum is σ = 103838592. Its totient is φ = 22219920.

The previous prime is 55688419. The next prime is 55688453. The reversal of 55688450 is 5488655.

It is a junction number, because it is equal to n+sod(n) for n = 55688398 and 55688407.

It is not an unprimeable number, because it can be changed into a prime (55688453) 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, 23207 + ... + 25493.

It is an arithmetic number, because the mean of its divisors is an integer number (4326608).

Almost surely, 2^55688450 is an apocalyptic number.

55688450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55688450 is a deficient number, since it is larger than the sum of its proper divisors (48150142).

55688450 is a wasteful number, since it uses less digits than its factorization.

55688450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2786 (or 2781 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 41.

The square root of 55688450 is about 7462.4694304231. The cubic root of 55688450 is about 381.8754242323.

The spelling of 55688450 in words is "fifty-five million, six hundred eighty-eight thousand, four hundred fifty".