2457441557 has 2 divisors, whose sum is σ = 2457441558. Its totient is φ = 2457441556.

The previous prime is 2457441533. The next prime is 2457441583. The reversal of 2457441557 is 7551447542.

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., 2254920196 + 202521361 = 47486^2 + 14231^2 .

It is a cyclic number.

It is not a de Polignac number, because 2457441557 - 2¹⁰ = 2457440533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2457441157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1228720778 + 1228720779.

It is an arithmetic number, because the mean of its divisors is an integer number (1228720779).

Almost surely, 2^2457441557 is an apocalyptic number.

It is an amenable number.

2457441557 is a deficient number, since it is larger than the sum of its proper divisors (1).

2457441557 is an equidigital number, since it uses as much as digits as its factorization.

2457441557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 784000, while the sum is 44.

The square root of 2457441557 is about 49572.5887663737. The cubic root of 2457441557 is about 1349.4632629911.

The spelling of 2457441557 in words is "two billion, four hundred fifty-seven million, four hundred forty-one thousand, five hundred fifty-seven".