55126957 has 2 divisors, whose sum is σ = 55126958. Its totient is φ = 55126956.

The previous prime is 55126949. The next prime is 55126987. The reversal of 55126957 is 75962155.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51926436 + 3200521 = 7206^2 + 1789^2 .

It is a cyclic number.

It is not a de Polignac number, because 55126957 - 2³ = 55126949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55126987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27563478 + 27563479.

It is an arithmetic number, because the mean of its divisors is an integer number (27563479).

Almost surely, 2^55126957 is an apocalyptic number.

It is an amenable number.

55126957 is a deficient number, since it is larger than the sum of its proper divisors (1).

55126957 is an equidigital number, since it uses as much as digits as its factorization.

55126957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 94500, while the sum is 40.

The square root of 55126957 is about 7424.7529925244. The cubic root of 55126957 is about 380.5876342086.

The spelling of 55126957 in words is "fifty-five million, one hundred twenty-six thousand, nine hundred fifty-seven".