44551142257 has 2 divisors, whose sum is σ = 44551142258. Its totient is φ = 44551142256.

The previous prime is 44551142219. The next prime is 44551142281. The reversal of 44551142257 is 75224115544.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43337246976 + 1213895281 = 208176^2 + 34841^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44551142257 is a prime.

It is not a weakly prime, because it can be changed into another prime (44551142287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22275571128 + 22275571129.

It is an arithmetic number, because the mean of its divisors is an integer number (22275571129).

Almost surely, 2^44551142257 is an apocalyptic number.

It is an amenable number.

44551142257 is a deficient number, since it is larger than the sum of its proper divisors (1).

44551142257 is an equidigital number, since it uses as much as digits as its factorization.

44551142257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 224000, while the sum is 40.

The spelling of 44551142257 in words is "forty-four billion, five hundred fifty-one million, one hundred forty-two thousand, two hundred fifty-seven".