55971053 has 2 divisors, whose sum is σ = 55971054. Its totient is φ = 55971052.

The previous prime is 55971043. The next prime is 55971061. The reversal of 55971053 is 35017955.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51652969 + 4318084 = 7187^2 + 2078^2 .

It is a cyclic number.

It is not a de Polignac number, because 55971053 - 2⁶ = 55970989 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55971023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27985526 + 27985527.

It is an arithmetic number, because the mean of its divisors is an integer number (27985527).

Almost surely, 2^55971053 is an apocalyptic number.

It is an amenable number.

55971053 is a deficient number, since it is larger than the sum of its proper divisors (1).

55971053 is an equidigital number, since it uses as much as digits as its factorization.

55971053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23625, while the sum is 35.

The square root of 55971053 is about 7481.3804207512. The cubic root of 55971053 is about 382.5203042179.

The spelling of 55971053 in words is "fifty-five million, nine hundred seventy-one thousand, fifty-three".