25455342379 has 16 divisors (see below), whose sum is σ = 26297671680. Its totient is φ = 24627960000.

The previous prime is 25455342373. The next prime is 25455342389. The reversal of 25455342379 is 97324355452.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 25455342379 - 2⁵ = 25455342347 is a prime.

It is a super-2 number, since 2×25455342379² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25455342373) 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, 2512534 + ... + 2522644.

It is an arithmetic number, because the mean of its divisors is an integer number (1643604480).

Almost surely, 2^25455342379 is an apocalyptic number.

25455342379 is a deficient number, since it is larger than the sum of its proper divisors (842329301).

25455342379 is a wasteful number, since it uses less digits than its factorization.

25455342379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10842.

The product of its digits is 4536000, while the sum is 49.

The spelling of 25455342379 in words is "twenty-five billion, four hundred fifty-five million, three hundred forty-two thousand, three hundred seventy-nine".