54449952437 has 2 divisors, whose sum is σ = 54449952438. Its totient is φ = 54449952436.

The previous prime is 54449952433. The next prime is 54449952481. The reversal of 54449952437 is 73425994445.

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., 48239093956 + 6210858481 = 219634^2 + 78809^2 .

It is a cyclic number.

It is not a de Polignac number, because 54449952437 - 2² = 54449952433 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54449952433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27224976218 + 27224976219.

It is an arithmetic number, because the mean of its divisors is an integer number (27224976219).

Almost surely, 2^54449952437 is an apocalyptic number.

It is an amenable number.

54449952437 is a deficient number, since it is larger than the sum of its proper divisors (1).

54449952437 is an equidigital number, since it uses as much as digits as its factorization.

54449952437 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21772800, while the sum is 56.

The spelling of 54449952437 in words is "fifty-four billion, four hundred forty-nine million, nine hundred fifty-two thousand, four hundred thirty-seven".