55775237 has 8 divisors (see below), whose sum is σ = 64824000. Its totient is φ = 46996704.

The previous prime is 55775227. The next prime is 55775261. The reversal of 55775237 is 73257755.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55775237 - 2⁶ = 55775173 is a prime.

It is a super-2 number, since 2×55775237² = 6221754124812338, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55775194 and 55775203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55775227) 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, 67112 + ... + 67937.

It is an arithmetic number, because the mean of its divisors is an integer number (8103000).

Almost surely, 2^55775237 is an apocalyptic number.

It is an amenable number.

55775237 is a deficient number, since it is larger than the sum of its proper divisors (9048763).

55775237 is a wasteful number, since it uses less digits than its factorization.

55775237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135115.

The product of its digits is 257250, while the sum is 41.

The square root of 55775237 is about 7468.2820648393. The cubic root of 55775237 is about 382.0736976675.

The spelling of 55775237 in words is "fifty-five million, seven hundred seventy-five thousand, two hundred thirty-seven".