55270237 has 4 divisors (see below), whose sum is σ = 60294816. Its totient is φ = 50245660.

The previous prime is 55270207. The next prime is 55270279. The reversal of 55270237 is 73207255.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55270237 - 2¹¹ = 55268189 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55270199 and 55270208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55270207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2512273 + ... + 2512294.

It is an arithmetic number, because the mean of its divisors is an integer number (15073704).

Almost surely, 2^55270237 is an apocalyptic number.

It is an amenable number.

55270237 is a deficient number, since it is larger than the sum of its proper divisors (5024579).

55270237 is a wasteful number, since it uses less digits than its factorization.

55270237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5024578.

The product of its (nonzero) digits is 14700, while the sum is 31.

The square root of 55270237 is about 7434.3955369620. The cubic root of 55270237 is about 380.9170763059.

The spelling of 55270237 in words is "fifty-five million, two hundred seventy thousand, two hundred thirty-seven".