25419261 has 8 divisors (see below), whose sum is σ = 38734144. Its totient is φ = 14525280.

The previous prime is 25419239. The next prime is 25419269. The reversal of 25419261 is 16291452.

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

It is not a de Polignac number, because 25419261 - 2⁷ = 25419133 is a prime.

It is a super-2 number, since 2×25419261² = 1292277659572242, which 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 (25419269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 605200 + ... + 605241.

It is an arithmetic number, because the mean of its divisors is an integer number (4841768).

Almost surely, 2^25419261 is an apocalyptic number.

25419261 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

25419261 is a deficient number, since it is larger than the sum of its proper divisors (13314883).

25419261 is a wasteful number, since it uses less digits than its factorization.

25419261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1210451.

The product of its digits is 4320, while the sum is 30.

The square root of 25419261 is about 5041.7517788959. The cubic root of 25419261 is about 294.0272893360.

It can be divided in two parts, 2541 and 9261, that multiplied together give a square (23532201 = 4851²).

The spelling of 25419261 in words is "twenty-five million, four hundred nineteen thousand, two hundred sixty-one".