55276157 has 2 divisors, whose sum is σ = 55276158. Its totient is φ = 55276156.

The previous prime is 55276103. The next prime is 55276171. The reversal of 55276157 is 75167255.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43811161 + 11464996 = 6619^2 + 3386^2 .

It is a cyclic number.

It is not a de Polignac number, because 55276157 - 2¹⁶ = 55210621 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55276157.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55276057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27638078 + 27638079.

It is an arithmetic number, because the mean of its divisors is an integer number (27638079).

Almost surely, 2^55276157 is an apocalyptic number.

It is an amenable number.

55276157 is a deficient number, since it is larger than the sum of its proper divisors (1).

55276157 is an equidigital number, since it uses as much as digits as its factorization.

55276157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 73500, while the sum is 38.

The square root of 55276157 is about 7434.7936756846. The cubic root of 55276157 is about 380.9306758410.

The spelling of 55276157 in words is "fifty-five million, two hundred seventy-six thousand, one hundred fifty-seven".