1440012501025 has 48 divisors (see below), whose sum is σ = 2172887712000. Its totient is φ = 944504964480.

The previous prime is 1440012501001. The next prime is 1440012501029. The reversal of 1440012501025 is 5201052100441.

It is not a de Polignac number, because 1440012501025 - 2¹⁷ = 1440012369953 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (1440012501029) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3453460 + ... + 3847909.

It is an arithmetic number, because the mean of its divisors is an integer number (45268494000).

Almost surely, 2^{1440012501025} is an apocalyptic number.

It is an amenable number.

1440012501025 is a deficient number, since it is larger than the sum of its proper divisors (732875210975).

1440012501025 is an equidigital number, since it uses as much as digits as its factorization.

1440012501025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7301423 (or 7301404 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

Adding to 1440012501025 its reverse (5201052100441), we get a palindrome (6641064601466).

The spelling of 1440012501025 in words is "one trillion, four hundred forty billion, twelve million, five hundred one thousand, twenty-five".