1125516475457 has 4 divisors (see below), whose sum is σ = 1227836155056. Its totient is φ = 1023196795860.

The previous prime is 1125516475451. The next prime is 1125516475471. The reversal of 1125516475457 is 7545746155211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1125516475457 - 2⁴ = 1125516475441 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1125516475399 and 1125516475408.

It is not an unprimeable number, because it can be changed into a prime (1125516475451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51159839783 + ... + 51159839804.

It is an arithmetic number, because the mean of its divisors is an integer number (306959038764).

Almost surely, 2^{1125516475457} is an apocalyptic number.

It is an amenable number.

1125516475457 is a deficient number, since it is larger than the sum of its proper divisors (102319679599).

1125516475457 is a wasteful number, since it uses less digits than its factorization.

1125516475457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102319679598.

The product of its digits is 5880000, while the sum is 53.

The spelling of 1125516475457 in words is "one trillion, one hundred twenty-five billion, five hundred sixteen million, four hundred seventy-five thousand, four hundred fifty-seven".