125453421250 has 40 divisors (see below), whose sum is σ = 235781197740. Its totient is φ = 50046648000.

The previous prime is 125453421229. The next prime is 125453421251. The reversal of 125453421250 is 52124354521.

It is a happy number.

It can be written as a sum of positive squares in 10 ways, for example, as 14907321 + 125438513929 = 3861^2 + 354173^2 .

It is a super-3 number, since 3×125453421250³ (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (125453421251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 331716 + ... + 600784.

Almost surely, 2^125453421250 is an apocalyptic number.

125453421250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125453421250 is a deficient number, since it is larger than the sum of its proper divisors (110327776490).

125453421250 is an equidigital number, since it uses as much as digits as its factorization.

125453421250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269464 (or 269449 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 34.

Adding to 125453421250 its reverse (52124354521), we get a palindrome (177577775771).

The spelling of 125453421250 in words is "one hundred twenty-five billion, four hundred fifty-three million, four hundred twenty-one thousand, two hundred fifty".