125002404452 has 12 divisors (see below), whose sum is σ = 218758854636. Its totient is φ = 62499874560.

The previous prime is 125002404407. The next prime is 125002404479. The reversal of 125002404452 is 254404200521.

It can be written as a sum of positive squares in 2 ways, for example, as 8548111936 + 116454292516 = 92456^2 + 341254^2 .

It is a super-2 number, since 2×125002404452² (a number of 23 digits) contains 22 as substring.

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, 102449 + ... + 510392.

It is an arithmetic number, because the mean of its divisors is an integer number (18229904553).

Almost surely, 2^125002404452 is an apocalyptic number.

It is an amenable number.

125002404452 is a deficient number, since it is larger than the sum of its proper divisors (93756450184).

125002404452 is a wasteful number, since it uses less digits than its factorization.

125002404452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663838 (or 663836 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 29.

Adding to 125002404452 its reverse (254404200521), we get a palindrome (379406604973).

The spelling of 125002404452 in words is "one hundred twenty-five billion, two million, four hundred four thousand, four hundred fifty-two".