125452520653 has 4 divisors (see below), whose sum is σ = 125526623068. Its totient is φ = 125378418240.

The previous prime is 125452520647. The next prime is 125452520659. The reversal of 125452520653 is 356025254521.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (125452520647) and next prime (125452520659).

It can be written as a sum of positive squares in 2 ways, for example, as 90334510249 + 35118010404 = 300557^2 + 187398^2 .

It is a cyclic number.

It is not a de Polignac number, because 125452520653 - 2¹⁷ = 125452389581 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 (125452520659) 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, 37048668 + ... + 37052053.

It is an arithmetic number, because the mean of its divisors is an integer number (31381655767).

Almost surely, 2^125452520653 is an apocalyptic number.

It is an amenable number.

125452520653 is a deficient number, since it is larger than the sum of its proper divisors (74102415).

125452520653 is an equidigital number, since it uses as much as digits as its factorization.

125452520653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74102414.

The product of its (nonzero) digits is 360000, while the sum is 40.

The spelling of 125452520653 in words is "one hundred twenty-five billion, four hundred fifty-two million, five hundred twenty thousand, six hundred fifty-three".