1025001457 has 2 divisors, whose sum is σ = 1025001458. Its totient is φ = 1025001456.

The previous prime is 1025001407. The next prime is 1025001487. The reversal of 1025001457 is 7541005201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 650811121 + 374190336 = 25511^2 + 19344^2 .

It is a cyclic number.

It is not a de Polignac number, because 1025001457 - 2¹⁵ = 1024968689 is a prime.

It is not a weakly prime, because it can be changed into another prime (1025001407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 512500728 + 512500729.

It is an arithmetic number, because the mean of its divisors is an integer number (512500729).

Almost surely, 2^1025001457 is an apocalyptic number.

It is an amenable number.

1025001457 is a deficient number, since it is larger than the sum of its proper divisors (1).

1025001457 is an equidigital number, since it uses as much as digits as its factorization.

1025001457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 1025001457 is about 32015.6439416733. The cubic root of 1025001457 is about 1008.2653153460.

Adding to 1025001457 its reverse (7541005201), we get a palindrome (8566006658).

The spelling of 1025001457 in words is "one billion, twenty-five million, one thousand, four hundred fifty-seven".