25131242152534 has 8 divisors (see below), whose sum is σ = 43082129404368. Its totient is φ = 10770532351080.

The previous prime is 25131242152493. The next prime is 25131242152547. The reversal of 25131242152534 is 43525124213152.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 897544362577 + ... + 897544362604.

It is an arithmetic number, because the mean of its divisors is an integer number (5385266175546).

Almost surely, 2^{25131242152534} is an apocalyptic number.

25131242152534 is a deficient number, since it is larger than the sum of its proper divisors (17950887251834).

25131242152534 is a wasteful number, since it uses less digits than its factorization.

25131242152534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1795088725190.

The product of its digits is 288000, while the sum is 40.

Adding to 25131242152534 its reverse (43525124213152), we get a palindrome (68656366365686).

The spelling of 25131242152534 in words is "twenty-five trillion, one hundred thirty-one billion, two hundred forty-two million, one hundred fifty-two thousand, five hundred thirty-four".