25320451219 has 16 divisors (see below), whose sum is σ = 31628261376. Its totient is φ = 19767657600.

The previous prime is 25320451201. The next prime is 25320451223. The reversal of 25320451219 is 91215402352.

It is a cyclic number.

It is not a de Polignac number, because 25320451219 - 2⁹ = 25320450707 is a prime.

It is a super-2 number, since 2×25320451219² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25320451259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3428197 + ... + 3435574.

It is an arithmetic number, because the mean of its divisors is an integer number (1976766336).

Almost surely, 2^25320451219 is an apocalyptic number.

25320451219 is a deficient number, since it is larger than the sum of its proper divisors (6307810157).

25320451219 is a wasteful number, since it uses less digits than its factorization.

25320451219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6863826.

The product of its (nonzero) digits is 21600, while the sum is 34.

The spelling of 25320451219 in words is "twenty-five billion, three hundred twenty million, four hundred fifty-one thousand, two hundred nineteen".