25142253511 has 16 divisors (see below), whose sum is σ = 27467112960. Its totient is φ = 22940024800.

The previous prime is 25142253497. The next prime is 25142253517. The reversal of 25142253511 is 11535224152.

It is a cyclic number.

It is not a de Polignac number, because 25142253511 - 2⁹ = 25142252999 is a prime.

It is a super-2 number, since 2×25142253511² (a number of 22 digits) 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 (25142253517) 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, 171715 + ... + 282436.

It is an arithmetic number, because the mean of its divisors is an integer number (1716694560).

Almost surely, 2^25142253511 is an apocalyptic number.

25142253511 is a deficient number, since it is larger than the sum of its proper divisors (2324859449).

25142253511 is a wasteful number, since it uses less digits than its factorization.

25142253511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454286.

The product of its digits is 12000, while the sum is 31.

Adding to 25142253511 its reverse (11535224152), we get a palindrome (36677477663).

The spelling of 25142253511 in words is "twenty-five billion, one hundred forty-two million, two hundred fifty-three thousand, five hundred eleven".