25112819 has 4 divisors (see below), whose sum is σ = 25538520. Its totient is φ = 24687120.

The previous prime is 25112807. The next prime is 25112833. The reversal of 25112819 is 91821152.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25112819 - 2¹² = 25108723 is a prime.

It is a super-2 number, since 2×25112819² = 1261307356253522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25112791 and 25112800.

It is not an unprimeable number, because it can be changed into a prime (25112119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212762 + ... + 212879.

It is an arithmetic number, because the mean of its divisors is an integer number (6384630).

Almost surely, 2^25112819 is an apocalyptic number.

25112819 is a deficient number, since it is larger than the sum of its proper divisors (425701).

25112819 is an equidigital number, since it uses as much as digits as its factorization.

25112819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425700.

The product of its digits is 1440, while the sum is 29.

The square root of 25112819 is about 5011.2692005120. The cubic root of 25112819 is about 292.8409601777.

The spelling of 25112819 in words is "twenty-five million, one hundred twelve thousand, eight hundred nineteen".