25412019 has 4 divisors (see below), whose sum is σ = 33882696. Its totient is φ = 16941344.

The previous prime is 25411999. The next prime is 25412021. The reversal of 25412019 is 91021452.

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 25412019 - 2⁷ = 25411891 is a prime.

It is a super-2 number, since 2×25412019² = 1291541419312722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25412019.

It is not an unprimeable number, because it can be changed into a prime (25412029) 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, 4235334 + ... + 4235339.

It is an arithmetic number, because the mean of its divisors is an integer number (8470674).

Almost surely, 2^25412019 is an apocalyptic number.

25412019 is a deficient number, since it is larger than the sum of its proper divisors (8470677).

25412019 is an equidigital number, since it uses as much as digits as its factorization.

25412019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8470676.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 25412019 is about 5041.0335249827. The cubic root of 25412019 is about 293.9993636897. Note that the first 3 decimals are identical.

It can be divided in two parts, 2541 and 2019, that added together give a triangular number (4560 = T₉₅).

The spelling of 25412019 in words is "twenty-five million, four hundred twelve thousand, nineteen".