251115401202425 has 24 divisors (see below), whose sum is σ = 318675540647520. Its totient is φ = 196241909705600.

The previous prime is 251115401202383. The next prime is 251115401202427. The reversal of 251115401202425 is 524202104511152.

251115401202425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 251115401202425 - 2³⁴ = 251098221333241 is a prime.

It is a super-2 number, since 2×251115401202425² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (251115401202427) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 679699991 + ... + 680069340.

It is an arithmetic number, because the mean of its divisors is an integer number (13278147526980).

Almost surely, 2^{251115401202425} is an apocalyptic number.

251115401202425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

251115401202425 is a deficient number, since it is larger than the sum of its proper divisors (67560139445095).

251115401202425 is a wasteful number, since it uses less digits than its factorization.

251115401202425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1359769513 (or 1359769508 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 35.

Adding to 251115401202425 its reverse (524202104511152), we get a palindrome (775317505713577).

The spelling of 251115401202425 in words is "two hundred fifty-one trillion, one hundred fifteen billion, four hundred one million, two hundred two thousand, four hundred twenty-five".