125570929537 has 4 divisors (see below), whose sum is σ = 129900961620. Its totient is φ = 121240897456.

The previous prime is 125570929531. The next prime is 125570929541. The reversal of 125570929537 is 735929075521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 735929075521 = 23 ⋅31996916327.

It can be written as a sum of positive squares in 2 ways, for example, as 49962978576 + 75607950961 = 223524^2 + 274969^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125570929537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125570929531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2165015998 + ... + 2165016055.

It is an arithmetic number, because the mean of its divisors is an integer number (32475240405).

Almost surely, 2^125570929537 is an apocalyptic number.

It is an amenable number.

125570929537 is a deficient number, since it is larger than the sum of its proper divisors (4330032083).

125570929537 is an equidigital number, since it uses as much as digits as its factorization.

125570929537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4330032082.

The product of its (nonzero) digits is 5953500, while the sum is 55.

The spelling of 125570929537 in words is "one hundred twenty-five billion, five hundred seventy million, nine hundred twenty-nine thousand, five hundred thirty-seven".