125451552305 has 4 divisors (see below), whose sum is σ = 150541862772. Its totient is φ = 100361241840.

The previous prime is 125451552293. The next prime is 125451552311. The reversal of 125451552305 is 503255154521.

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

It can be written as a sum of positive squares in 2 ways, for example, as 99542143009 + 25909409296 = 315503^2 + 160964^2 .

It is not a de Polignac number, because 125451552305 - 2³² = 121156585009 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12545155226 + ... + 12545155235.

It is an arithmetic number, because the mean of its divisors is an integer number (37635465693).

Almost surely, 2^125451552305 is an apocalyptic number.

It is an amenable number.

125451552305 is a deficient number, since it is larger than the sum of its proper divisors (25090310467).

125451552305 is an equidigital number, since it uses as much as digits as its factorization.

125451552305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25090310466.

The product of its (nonzero) digits is 150000, while the sum is 38.

The spelling of 125451552305 in words is "one hundred twenty-five billion, four hundred fifty-one million, five hundred fifty-two thousand, three hundred five".