55275157 has 8 divisors (see below), whose sum is σ = 63627200. Its totient is φ = 47037024.

The previous prime is 55275127. The next prime is 55275221. The reversal of 55275157 is 75157255.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55275157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55275127) 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, 27432 + ... + 29377.

It is an arithmetic number, because the mean of its divisors is an integer number (7953400).

Almost surely, 2^55275157 is an apocalyptic number.

It is an amenable number.

55275157 is a deficient number, since it is larger than the sum of its proper divisors (8352043).

55275157 is a wasteful number, since it uses less digits than its factorization.

55275157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56955.

The product of its digits is 61250, while the sum is 37.

The square root of 55275157 is about 7434.7264240186. The cubic root of 55275157 is about 380.9283786904.

The spelling of 55275157 in words is "fifty-five million, two hundred seventy-five thousand, one hundred fifty-seven".