25042253415 has 16 divisors (see below), whose sum is σ = 40078445568. Its totient is φ = 13352255136.

The previous prime is 25042253399. The next prime is 25042253473. The reversal of 25042253415 is 51435224052.

It is a happy number.

It is not a de Polignac number, because 25042253415 - 2⁴ = 25042253399 is a prime.

It is a super-2 number, since 2×25042253415² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168067 + ... + 279876.

It is an arithmetic number, because the mean of its divisors is an integer number (2504902848).

Almost surely, 2^25042253415 is an apocalyptic number.

25042253415 is a deficient number, since it is larger than the sum of its proper divisors (15036192153).

25042253415 is a wasteful number, since it uses less digits than its factorization.

25042253415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451678.

The product of its (nonzero) digits is 48000, while the sum is 33.

Adding to 25042253415 its reverse (51435224052), we get a palindrome (76477477467).

The spelling of 25042253415 in words is "twenty-five billion, forty-two million, two hundred fifty-three thousand, four hundred fifteen".