125505144250231 has 8 divisors (see below), whose sum is σ = 127877982319584. Its totient is φ = 123132484569120.

The previous prime is 125505144250217. The next prime is 125505144250267. The reversal of 125505144250231 is 132052441505521.

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

It is a cyclic number.

It is not a de Polignac number, because 125505144250231 - 2¹³ = 125505144242039 is a prime.

It is a super-2 number, since 2×125505144250231² (a number of 29 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 (125505144220231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43176235 + ... + 45991276.

It is an arithmetic number, because the mean of its divisors is an integer number (15984747789948).

Almost surely, 2^{125505144250231} is an apocalyptic number.

125505144250231 is a deficient number, since it is larger than the sum of its proper divisors (2372838069353).

125505144250231 is an equidigital number, since it uses as much as digits as its factorization.

125505144250231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89194121.

The product of its (nonzero) digits is 240000, while the sum is 40.

Adding to 125505144250231 its reverse (132052441505521), we get a palindrome (257557585755752).

The spelling of 125505144250231 in words is "one hundred twenty-five trillion, five hundred five billion, one hundred forty-four million, two hundred fifty thousand, two hundred thirty-one".