1125306555537 has 12 divisors (see below), whose sum is σ = 1533011565296. Its totient is φ = 734242570920.

The previous prime is 1125306555521. The next prime is 1125306555547. The reversal of 1125306555537 is 7355556035211.

It is not a de Polignac number, because 1125306555537 - 2⁴ = 1125306555521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1125306555547) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 84896539 + ... + 84909792.

Almost surely, 2^{1125306555537} is an apocalyptic number.

It is an amenable number.

1125306555537 is a deficient number, since it is larger than the sum of its proper divisors (407705009759).

1125306555537 is an equidigital number, since it uses as much as digits as its factorization.

1125306555537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169806428 (or 169806381 counting only the distinct ones).

The product of its (nonzero) digits is 2362500, while the sum is 48.

The spelling of 1125306555537 in words is "one trillion, one hundred twenty-five billion, three hundred six million, five hundred fifty-five thousand, five hundred thirty-seven".