55975877 has 2 divisors, whose sum is σ = 55975878. Its totient is φ = 55975876.

The previous prime is 55975861. The next prime is 55975921. The reversal of 55975877 is 77857955.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47761921 + 8213956 = 6911^2 + 2866^2 .

It is a cyclic number.

It is not a de Polignac number, because 55975877 - 2⁴ = 55975861 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55975807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27987938 + 27987939.

It is an arithmetic number, because the mean of its divisors is an integer number (27987939).

Almost surely, 2^55975877 is an apocalyptic number.

It is an amenable number.

55975877 is a deficient number, since it is larger than the sum of its proper divisors (1).

55975877 is an equidigital number, since it uses as much as digits as its factorization.

55975877 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3087000, while the sum is 53.

The square root of 55975877 is about 7481.7028141995. The cubic root of 55975877 is about 382.5312933800.

The spelling of 55975877 in words is "fifty-five million, nine hundred seventy-five thousand, eight hundred seventy-seven".