125502150001 has 4 divisors (see below), whose sum is σ = 125503547904. Its totient is φ = 125500752100.

The previous prime is 125502149999. The next prime is 125502150047. The reversal of 125502150001 is 100051205521.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 100051205521 = 238463 ⋅419567.

It is a cyclic number.

It is not a de Polignac number, because 125502150001 - 2¹ = 125502149999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125502150071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 554305 + ... + 747166.

It is an arithmetic number, because the mean of its divisors is an integer number (31375886976).

Almost surely, 2^125502150001 is an apocalyptic number.

It is an amenable number.

125502150001 is a deficient number, since it is larger than the sum of its proper divisors (1397903).

125502150001 is an equidigital number, since it uses as much as digits as its factorization.

125502150001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1397902.

The product of its (nonzero) digits is 500, while the sum is 22.

Adding to 125502150001 its reverse (100051205521), we get a palindrome (225553355522).

The spelling of 125502150001 in words is "one hundred twenty-five billion, five hundred two million, one hundred fifty thousand, one".