55537750 has 16 divisors (see below), whose sum is σ = 103967136. Its totient is φ = 22215000.

The previous prime is 55537747. The next prime is 55537751. The reversal of 55537750 is 5773555.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55537751) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110826 + ... + 111325.

It is an arithmetic number, because the mean of its divisors is an integer number (6497946).

Almost surely, 2^55537750 is an apocalyptic number.

55537750 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55537750 is a deficient number, since it is larger than the sum of its proper divisors (48429386).

55537750 is a wasteful number, since it uses less digits than its factorization.

55537750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222168 (or 222158 counting only the distinct ones).

The product of its (nonzero) digits is 91875, while the sum is 37.

The square root of 55537750 is about 7452.3653963020. The cubic root of 55537750 is about 381.5306452826.

The spelling of 55537750 in words is "fifty-five million, five hundred thirty-seven thousand, seven hundred fifty".