55352971 has 2 divisors, whose sum is σ = 55352972. Its totient is φ = 55352970.

The previous prime is 55352963. The next prime is 55352977. The reversal of 55352971 is 17925355.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55352971 - 2³ = 55352963 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55352971.

It is not a weakly prime, because it can be changed into another prime (55352977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27676485 + 27676486.

It is an arithmetic number, because the mean of its divisors is an integer number (27676486).

Almost surely, 2^55352971 is an apocalyptic number.

55352971 is a deficient number, since it is larger than the sum of its proper divisors (1).

55352971 is an equidigital number, since it uses as much as digits as its factorization.

55352971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47250, while the sum is 37.

The square root of 55352971 is about 7439.9577283745. The cubic root of 55352971 is about 381.1070464317.

The spelling of 55352971 in words is "fifty-five million, three hundred fifty-two thousand, nine hundred seventy-one".