25201131145 has 8 divisors (see below), whose sum is σ = 30399690240. Its totient is φ = 20055349680.

The previous prime is 25201131101. The next prime is 25201131181. The reversal of 25201131145 is 54113110252.

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

It is a de Polignac number, because none of the positive numbers 2^k-25201131145 is a prime.

It is a super-2 number, since 2×25201131145² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13193355 + ... + 13195264.

It is an arithmetic number, because the mean of its divisors is an integer number (3799961280).

Almost surely, 2^25201131145 is an apocalyptic number.

It is an amenable number.

25201131145 is a deficient number, since it is larger than the sum of its proper divisors (5198559095).

25201131145 is a wasteful number, since it uses less digits than its factorization.

25201131145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26388815.

The product of its (nonzero) digits is 1200, while the sum is 25.

Adding to 25201131145 its reverse (54113110252), we get a palindrome (79314241397).

The spelling of 25201131145 in words is "twenty-five billion, two hundred one million, one hundred thirty-one thousand, one hundred forty-five".