55667850 has 48 divisors (see below), whose sum is σ = 157781568. Its totient is φ = 12723840.

The previous prime is 55667837. The next prime is 55667897. The reversal of 55667850 is 5876655.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25459 + ... + 27558.

It is an arithmetic number, because the mean of its divisors is an integer number (3287116).

Almost surely, 2^55667850 is an apocalyptic number.

55667850 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55667850 is an abundant number, since it is smaller than the sum of its proper divisors (102113718).

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

55667850 is a wasteful number, since it uses less digits than its factorization.

55667850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53039 (or 53034 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 42.

The square root of 55667850 is about 7461.0890625967. The cubic root of 55667850 is about 381.8283312598.

The spelling of 55667850 in words is "fifty-five million, six hundred sixty-seven thousand, eight hundred fifty".