1025420235514 has 16 divisors (see below), whose sum is σ = 1591226670600. Its totient is φ = 495012619584.

The previous prime is 1025420235491. The next prime is 1025420235517. The reversal of 1025420235514 is 4155320245201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1025166375025 + 253860489 = 1012505^2 + 15933^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1025420235514.

It is not an unprimeable number, because it can be changed into a prime (1025420235517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1382452 + ... + 1990480.

Almost surely, 2^{1025420235514} is an apocalyptic number.

1025420235514 is a deficient number, since it is larger than the sum of its proper divisors (565806435086).

1025420235514 is a wasteful number, since it uses less digits than its factorization.

1025420235514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637137.

The product of its (nonzero) digits is 48000, while the sum is 34.

The spelling of 1025420235514 in words is "one trillion, twenty-five billion, four hundred twenty million, two hundred thirty-five thousand, five hundred fourteen".