25457139983 has 8 divisors (see below), whose sum is σ = 27811623936. Its totient is φ = 23109355800.

The previous prime is 25457139947. The next prime is 25457140013. The reversal of 25457139983 is 38993175452.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25457139983 - 2¹⁴ = 25457123599 is a prime.

It is a super-2 number, since 2×25457139983² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25457132983) 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 7 ways as a sum of consecutive naturals, for example, 1666991 + ... + 1682192.

It is an arithmetic number, because the mean of its divisors is an integer number (3476452992).

Almost surely, 2^25457139983 is an apocalyptic number.

25457139983 is a deficient number, since it is larger than the sum of its proper divisors (2354483953).

25457139983 is a wasteful number, since it uses less digits than its factorization.

25457139983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3349885.

The product of its digits is 8164800, while the sum is 56.

The spelling of 25457139983 in words is "twenty-five billion, four hundred fifty-seven million, one hundred thirty-nine thousand, nine hundred eighty-three".