1425555013 has 2 divisors, whose sum is σ = 1425555014. Its totient is φ = 1425555012.

The previous prime is 1425555011. The next prime is 1425555029. The reversal of 1425555013 is 3105555241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 968578884 + 456976129 = 31122^2 + 21377^2 .

It is a cyclic number.

It is not a de Polignac number, because 1425555013 - 2¹ = 1425555011 is a prime.

Together with 1425555011, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1425555011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 712777506 + 712777507.

It is an arithmetic number, because the mean of its divisors is an integer number (712777507).

Almost surely, 2^1425555013 is an apocalyptic number.

It is an amenable number.

1425555013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1425555013 is an equidigital number, since it uses as much as digits as its factorization.

1425555013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15000, while the sum is 31.

The square root of 1425555013 is about 37756.5227874602. The cubic root of 1425555013 is about 1125.4546344873.

The spelling of 1425555013 in words is "one billion, four hundred twenty-five million, five hundred fifty-five thousand, thirteen".