25321552021214 has 16 divisors (see below), whose sum is σ = 38177904840768. Its totient is φ = 12595593078432.

The previous prime is 25321552021189. The next prime is 25321552021289. The reversal of 25321552021214 is 41212025512352.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3112592 + ... + 7767324.

It is an arithmetic number, because the mean of its divisors is an integer number (2386119052548).

Almost surely, 2^{25321552021214} is an apocalyptic number.

25321552021214 is a deficient number, since it is larger than the sum of its proper divisors (12856352819554).

25321552021214 is a wasteful number, since it uses less digits than its factorization.

25321552021214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4668739.

The product of its (nonzero) digits is 48000, while the sum is 35.

Adding to 25321552021214 its reverse (41212025512352), we get a palindrome (66533577533566).

The spelling of 25321552021214 in words is "twenty-five trillion, three hundred twenty-one billion, five hundred fifty-two million, twenty-one thousand, two hundred fourteen".