55055750 has 32 divisors (see below), whose sum is σ = 103693824. Its totient is φ = 21888000.

The previous prime is 55055731. The next prime is 55055821. The reversal of 55055750 is 5755055.

It is a super-2 number, since 2×55055750² = 6062271216125000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47174 + ... + 48326.

It is an arithmetic number, because the mean of its divisors is an integer number (3240432).

Almost surely, 2^55055750 is an apocalyptic number.

55055750 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55055750 is a deficient number, since it is larger than the sum of its proper divisors (48638074).

55055750 is a wasteful number, since it uses less digits than its factorization.

55055750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1361 (or 1351 counting only the distinct ones).

The product of its (nonzero) digits is 21875, while the sum is 32.

The square root of 55055750 is about 7419.9561993316. The cubic root of 55055750 is about 380.4236963821.

The spelling of 55055750 in words is "fifty-five million, fifty-five thousand, seven hundred fifty".