25137755138 has 8 divisors (see below), whose sum is σ = 38508901632. Its totient is φ = 12301454596.

The previous prime is 25137755107. The next prime is 25137755161. The reversal of 25137755138 is 83155773152.

25137755138 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a junction number, because it is equal to n+sod(n) for n = 25137755092 and 25137755101.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133711370 + ... + 133711557.

It is an arithmetic number, because the mean of its divisors is an integer number (4813612704).

Almost surely, 2^25137755138 is an apocalyptic number.

25137755138 is a deficient number, since it is larger than the sum of its proper divisors (13371146494).

25137755138 is a wasteful number, since it uses less digits than its factorization.

25137755138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267422976.

The product of its digits is 882000, while the sum is 47.

The spelling of 25137755138 in words is "twenty-five billion, one hundred thirty-seven million, seven hundred fifty-five thousand, one hundred thirty-eight".