1025261427 has 16 divisors (see below), whose sum is σ = 1399954688. Its totient is φ = 667064160.

The previous prime is 1025261411. The next prime is 1025261437. The reversal of 1025261427 is 7241625201.

It is not a de Polignac number, because 1025261427 - 2⁴ = 1025261411 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1025261394 and 1025261403.

It is not an unprimeable number, because it can be changed into a prime (1025261407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 206658 + ... + 211560.

It is an arithmetic number, because the mean of its divisors is an integer number (87497168).

Almost surely, 2^1025261427 is an apocalyptic number.

1025261427 is a deficient number, since it is larger than the sum of its proper divisors (374693261).

1025261427 is a wasteful number, since it uses less digits than its factorization.

1025261427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6570.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 1025261427 is about 32019.7037306718. The cubic root of 1025261427 is about 1008.3505498840.

Adding to 1025261427 its reverse (7241625201), we get a palindrome (8266886628).

The spelling of 1025261427 in words is "one billion, twenty-five million, two hundred sixty-one thousand, four hundred twenty-seven".