55541957 has 2 divisors, whose sum is σ = 55541958. Its totient is φ = 55541956.

The previous prime is 55541947. The next prime is 55541971. The reversal of 55541957 is 75914555.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34739236 + 20802721 = 5894^2 + 4561^2 .

It is a cyclic number.

It is not a de Polignac number, because 55541957 - 2¹⁴ = 55525573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55541947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27770978 + 27770979.

It is an arithmetic number, because the mean of its divisors is an integer number (27770979).

Almost surely, 2^55541957 is an apocalyptic number.

It is an amenable number.

55541957 is a deficient number, since it is larger than the sum of its proper divisors (1).

55541957 is an equidigital number, since it uses as much as digits as its factorization.

55541957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 157500, while the sum is 41.

The square root of 55541957 is about 7452.6476503321. The cubic root of 55541957 is about 381.5402787235.

The spelling of 55541957 in words is "fifty-five million, five hundred forty-one thousand, nine hundred fifty-seven".