125520545263011 has 64 divisors (see below), whose sum is σ = 175969764292608. Its totient is φ = 79505893490688.

The previous prime is 125520545262997. The next prime is 125520545263019. The reversal of 125520545263011 is 110362545025521.

It is a happy number.

It is not a de Polignac number, because 125520545263011 - 2⁵ = 125520545262979 is a prime.

It is a super-2 number, since 2×125520545263011² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (125520545263019) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 647607331 + ... + 647801123.

It is an arithmetic number, because the mean of its divisors is an integer number (2749527567072).

Almost surely, 2^{125520545263011} is an apocalyptic number.

125520545263011 is a deficient number, since it is larger than the sum of its proper divisors (50449219029597).

125520545263011 is a wasteful number, since it uses less digits than its factorization.

125520545263011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194540.

The product of its (nonzero) digits is 360000, while the sum is 42.

The spelling of 125520545263011 in words is "one hundred twenty-five trillion, five hundred twenty billion, five hundred forty-five million, two hundred sixty-three thousand, eleven".