1425623501 has 2 divisors, whose sum is σ = 1425623502. Its totient is φ = 1425623500.

The previous prime is 1425623477. The next prime is 1425623503. The reversal of 1425623501 is 1053265241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1425062500 + 561001 = 37750^2 + 749^2 .

It is a cyclic number.

It is not a de Polignac number, because 1425623501 - 2¹⁰ = 1425622477 is a prime.

Together with 1425623503, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1425623503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 712811750 + 712811751.

It is an arithmetic number, because the mean of its divisors is an integer number (712811751).

Almost surely, 2^1425623501 is an apocalyptic number.

It is an amenable number.

1425623501 is a deficient number, since it is larger than the sum of its proper divisors (1).

1425623501 is an equidigital number, since it uses as much as digits as its factorization.

1425623501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 1425623501 is about 37757.4297456805. The cubic root of 1425623501 is about 1125.4726576202.

Adding to 1425623501 its reverse (1053265241), we get a palindrome (2478888742).

The spelling of 1425623501 in words is "one billion, four hundred twenty-five million, six hundred twenty-three thousand, five hundred one".