125340442553 has 8 divisors (see below), whose sum is σ = 133930965960. Its totient is φ = 116885203200.

The previous prime is 125340442529. The next prime is 125340442561. The reversal of 125340442553 is 355244043521.

It can be written as a sum of positive squares in 4 ways, for example, as 14086841344 + 111253601209 = 118688^2 + 333547^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125340442553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125340442523) 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, 33819098 + ... + 33822803.

It is an arithmetic number, because the mean of its divisors is an integer number (16741370745).

Almost surely, 2^125340442553 is an apocalyptic number.

It is an amenable number.

125340442553 is a deficient number, since it is larger than the sum of its proper divisors (8590523407).

125340442553 is a wasteful number, since it uses less digits than its factorization.

125340442553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67642027.

The product of its (nonzero) digits is 288000, while the sum is 38.

The spelling of 125340442553 in words is "one hundred twenty-five billion, three hundred forty million, four hundred forty-two thousand, five hundred fifty-three".