125516553453 has 32 divisors (see below), whose sum is σ = 187959398400. Its totient is φ = 82775160000.

The previous prime is 125516553431. The next prime is 125516553457. The reversal of 125516553453 is 354355615521.

125516553453 is a `hidden beast` number, since 1 + 2 + 5 + 5 + 1 + 65 + 534 + 53 = 666.

It is not a de Polignac number, because 125516553453 - 2¹³ = 125516545261 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 125516553399 and 125516553408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125516553457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3118783 + ... + 3158771.

It is an arithmetic number, because the mean of its divisors is an integer number (5873731200).

Almost surely, 2^125516553453 is an apocalyptic number.

It is an amenable number.

125516553453 is a deficient number, since it is larger than the sum of its proper divisors (62442844947).

125516553453 is a wasteful number, since it uses less digits than its factorization.

125516553453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41250 (or 41244 counting only the distinct ones).

The product of its digits is 1350000, while the sum is 45.

The spelling of 125516553453 in words is "one hundred twenty-five billion, five hundred sixteen million, five hundred fifty-three thousand, four hundred fifty-three".