5444661251 has 2 divisors, whose sum is σ = 5444661252. Its totient is φ = 5444661250.

The previous prime is 5444661217. The next prime is 5444661263. The reversal of 5444661251 is 1521664445.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5444661251 - 2²² = 5440466947 is a prime.

It is a super-2 number, since 2×5444661251² = 59288672276281770002, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5444666251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2722330625 + 2722330626.

It is an arithmetic number, because the mean of its divisors is an integer number (2722330626).

Almost surely, 2^5444661251 is an apocalyptic number.

5444661251 is a deficient number, since it is larger than the sum of its proper divisors (1).

5444661251 is an equidigital number, since it uses as much as digits as its factorization.

5444661251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 115200, while the sum is 38.

The square root of 5444661251 is about 73787.9478709091. The cubic root of 5444661251 is about 1759.2340471935.

The spelling of 5444661251 in words is "five billion, four hundred forty-four million, six hundred sixty-one thousand, two hundred fifty-one".