125683403515 has 16 divisors (see below), whose sum is σ = 157418630208. Its totient is φ = 96149978496.

The previous prime is 125683403479. The next prime is 125683403519. The reversal of 125683403515 is 515304386521.

It is a cyclic number.

It is not a de Polignac number, because 125683403515 - 2⁹ = 125683403003 is a prime.

It is a super-2 number, since 2×125683403515² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125683403519) 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 15 ways as a sum of consecutive naturals, for example, 304909 + ... + 586801.

It is an arithmetic number, because the mean of its divisors is an integer number (9838664388).

Almost surely, 2^125683403515 is an apocalyptic number.

125683403515 is a deficient number, since it is larger than the sum of its proper divisors (31735226693).

125683403515 is a wasteful number, since it uses less digits than its factorization.

125683403515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285798.

The product of its (nonzero) digits is 432000, while the sum is 43.

The spelling of 125683403515 in words is "one hundred twenty-five billion, six hundred eighty-three million, four hundred three thousand, five hundred fifteen".