55669750 has 16 divisors (see below), whose sum is σ = 104214240. Its totient is φ = 22267800.

The previous prime is 55669741. The next prime is 55669787. The reversal of 55669750 is 5796655.

It is a junction number, because it is equal to n+sod(n) for n = 55669697 and 55669706.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111090 + ... + 111589.

It is an arithmetic number, because the mean of its divisors is an integer number (6513390).

Almost surely, 2^55669750 is an apocalyptic number.

55669750 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55669750 is a deficient number, since it is larger than the sum of its proper divisors (48544490).

55669750 is a wasteful number, since it uses less digits than its factorization.

55669750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222696 (or 222686 counting only the distinct ones).

The product of its (nonzero) digits is 283500, while the sum is 43.

The square root of 55669750 is about 7461.2163887666. The cubic root of 55669750 is about 381.8326752727.

The spelling of 55669750 in words is "fifty-five million, six hundred sixty-nine thousand, seven hundred fifty".