25135019 has 8 divisors (see below), whose sum is σ = 30935520. Its totient is φ = 19886976.

The previous prime is 25134943. The next prime is 25135031. The reversal of 25135019 is 91053152.

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 25135019 - 2¹² = 25130923 is a prime.

It is a super-2 number, since 2×25135019² = 1263538360260722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25105019) 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, 138014 + ... + 138195.

It is an arithmetic number, because the mean of its divisors is an integer number (3866940).

Almost surely, 2^25135019 is an apocalyptic number.

25135019 is a deficient number, since it is larger than the sum of its proper divisors (5800501).

25135019 is a wasteful number, since it uses less digits than its factorization.

25135019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276229.

The product of its (nonzero) digits is 1350, while the sum is 26.

The square root of 25135019 is about 5013.4837189324. The cubic root of 25135019 is about 292.9272262740.

The spelling of 25135019 in words is "twenty-five million, one hundred thirty-five thousand, nineteen".