125925938421 has 8 divisors (see below), whose sum is σ = 167902938144. Its totient is φ = 83949782160.

The previous prime is 125925938419. The next prime is 125925938429. The reversal of 125925938421 is 124839529521.

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

It is not a de Polignac number, because 125925938421 - 2¹ = 125925938419 is a prime.

It is a super-3 number, since 3×125925938421³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125925938429) 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, 352570 + ... + 613316.

It is an arithmetic number, because the mean of its divisors is an integer number (20987867268).

Almost surely, 2^125925938421 is an apocalyptic number.

It is an amenable number.

125925938421 is a deficient number, since it is larger than the sum of its proper divisors (41976999723).

125925938421 is a wasteful number, since it uses less digits than its factorization.

125925938421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421731.

The product of its digits is 1555200, while the sum is 51.

The spelling of 125925938421 in words is "one hundred twenty-five billion, nine hundred twenty-five million, nine hundred thirty-eight thousand, four hundred twenty-one".