1425369557 has 2 divisors, whose sum is σ = 1425369558. Its totient is φ = 1425369556.

The previous prime is 1425369529. The next prime is 1425369571. The reversal of 1425369557 is 7559635241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1425364516 + 5041 = 37754^2 + 71^2 .

It is a cyclic number.

It is not a de Polignac number, because 1425369557 - 2¹⁰ = 1425368533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1425368557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 712684778 + 712684779.

It is an arithmetic number, because the mean of its divisors is an integer number (712684779).

Almost surely, 2^1425369557 is an apocalyptic number.

It is an amenable number.

1425369557 is a deficient number, since it is larger than the sum of its proper divisors (1).

1425369557 is an equidigital number, since it uses as much as digits as its factorization.

1425369557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1134000, while the sum is 47.

The square root of 1425369557 is about 37754.0667610789. The cubic root of 1425369557 is about 1125.4058274461.

The spelling of 1425369557 in words is "one billion, four hundred twenty-five million, three hundred sixty-nine thousand, five hundred fifty-seven".