55567650 has 24 divisors (see below), whose sum is σ = 137808144. Its totient is φ = 14818000.

The previous prime is 55567643. The next prime is 55567651. The reversal of 55567650 is 5676555.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 55567599 and 55567608.

It is not an unprimeable number, because it can be changed into a prime (55567651) 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, 185076 + ... + 185375.

It is an arithmetic number, because the mean of its divisors is an integer number (5742006).

Almost surely, 2^55567650 is an apocalyptic number.

55567650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55567650 is an abundant number, since it is smaller than the sum of its proper divisors (82240494).

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

55567650 is a wasteful number, since it uses less digits than its factorization.

55567650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370466 (or 370461 counting only the distinct ones).

The product of its (nonzero) digits is 157500, while the sum is 39.

The square root of 55567650 is about 7454.3712008459. The cubic root of 55567650 is about 381.5991015410.

It can be divided in two parts, 5 and 5567650, that added together give a palindrome (5567655).

The spelling of 55567650 in words is "fifty-five million, five hundred sixty-seven thousand, six hundred fifty".