25998711442 has 32 divisors (see below), whose sum is σ = 42817999680. Its totient is φ = 11741421120.

The previous prime is 25998711413. The next prime is 25998711451. The reversal of 25998711442 is 24411789952.

It is a super-3 number, since 3×25998711442³ (a number of 32 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25998711442.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6349948 + ... + 6354040.

It is an arithmetic number, because the mean of its divisors is an integer number (1338062490).

Almost surely, 2^25998711442 is an apocalyptic number.

25998711442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

25998711442 is a deficient number, since it is larger than the sum of its proper divisors (16819288238).

25998711442 is a wasteful number, since it uses less digits than its factorization.

25998711442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5898.

The product of its digits is 1451520, while the sum is 52.

The spelling of 25998711442 in words is "twenty-five billion, nine hundred ninety-eight million, seven hundred eleven thousand, four hundred forty-two".