55643050 has 24 divisors (see below), whose sum is σ = 103761216. Its totient is φ = 22200240.

The previous prime is 55643033. The next prime is 55643051. The reversal of 55643050 is 5034655.

It is a super-2 number, since 2×55643050² = 6192298026605000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55643051) 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, 22159 + ... + 24541.

It is an arithmetic number, because the mean of its divisors is an integer number (4323384).

Almost surely, 2^55643050 is an apocalyptic number.

55643050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55643050 is a deficient number, since it is larger than the sum of its proper divisors (48118166).

55643050 is a wasteful number, since it uses less digits than its factorization.

55643050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2862 (or 2857 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 55643050 is about 7459.4269216878. The cubic root of 55643050 is about 381.7716213925.

The spelling of 55643050 in words is "fifty-five million, six hundred forty-three thousand, fifty".