25078613 has 16 divisors (see below), whose sum is σ = 30357120. Its totient is φ = 20238336.

The previous prime is 25078607. The next prime is 25078631. The reversal of 25078613 is 31687052.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 25078613 - 2¹⁰ = 25077589 is a prime.

It is a super-3 number, since 3×25078613³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25078613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25078633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25181 + ... + 26157.

It is an arithmetic number, because the mean of its divisors is an integer number (1897320).

Almost surely, 2^25078613 is an apocalyptic number.

It is an amenable number.

25078613 is a deficient number, since it is larger than the sum of its proper divisors (5278507).

25078613 is a wasteful number, since it uses less digits than its factorization.

25078613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1196.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 25078613 is about 5007.8551296937. The cubic root of 25078613 is about 292.7079408710.

The spelling of 25078613 in words is "twenty-five million, seventy-eight thousand, six hundred thirteen".