125540710553 has 8 divisors (see below), whose sum is σ = 127312761576. Its totient is φ = 123770073600.

The previous prime is 125540710517. The next prime is 125540710567. The reversal of 125540710553 is 355017045521.

It can be written as a sum of positive squares in 4 ways, for example, as 28354518544 + 97186192009 = 168388^2 + 311747^2 .

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 125540710553 - 2²⁸ = 125272275097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125540710573) 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, 174068 + ... + 530453.

It is an arithmetic number, because the mean of its divisors is an integer number (15914095197).

Almost surely, 2^125540710553 is an apocalyptic number.

It is an amenable number.

125540710553 is a deficient number, since it is larger than the sum of its proper divisors (1772051023).

125540710553 is an equidigital number, since it uses as much as digits as its factorization.

125540710553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707035.

The product of its (nonzero) digits is 105000, while the sum is 38.

The spelling of 125540710553 in words is "one hundred twenty-five billion, five hundred forty million, seven hundred ten thousand, five hundred fifty-three".