125562650639 has 8 divisors (see below), whose sum is σ = 127163550720. Its totient is φ = 123962038200.

The previous prime is 125562650599. The next prime is 125562650651. The reversal of 125562650639 is 936056265521.

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

It is a cyclic number.

It is not a de Polignac number, because 125562650639 - 2¹⁶ = 125562585103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125562650669) 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, 887774 + ... + 1019444.

It is an arithmetic number, because the mean of its divisors is an integer number (15895443840).

Almost surely, 2^125562650639 is an apocalyptic number.

125562650639 is a deficient number, since it is larger than the sum of its proper divisors (1600900081).

125562650639 is a wasteful number, since it uses less digits than its factorization.

125562650639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143821.

The product of its (nonzero) digits is 2916000, while the sum is 50.

The spelling of 125562650639 in words is "one hundred twenty-five billion, five hundred sixty-two million, six hundred fifty thousand, six hundred thirty-nine".