54345997 has 2 divisors, whose sum is σ = 54345998. Its totient is φ = 54345996.

The previous prime is 54345901. The next prime is 54346013. The reversal of 54345997 is 79954345.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52113961 + 2232036 = 7219^2 + 1494^2 .

It is a cyclic number.

It is not a de Polignac number, because 54345997 - 2²³ = 45957389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54346997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27172998 + 27172999.

It is an arithmetic number, because the mean of its divisors is an integer number (27172999).

Almost surely, 2^54345997 is an apocalyptic number.

It is an amenable number.

54345997 is a deficient number, since it is larger than the sum of its proper divisors (1).

54345997 is an equidigital number, since it uses as much as digits as its factorization.

54345997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 680400, while the sum is 46.

The square root of 54345997 is about 7371.9737519880. The cubic root of 54345997 is about 378.7818726604.

The spelling of 54345997 in words is "fifty-four million, three hundred forty-five thousand, nine hundred ninety-seven".