1553055440275 has 24 divisors (see below), whose sum is σ = 1946462918400. Its totient is φ = 1229138153760.

The previous prime is 1553055440249. The next prime is 1553055440329. The reversal of 1553055440275 is 5720445503551.

It is not a de Polignac number, because 1553055440275 - 2³⁷ = 1415616486803 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1545426 + ... + 2344024.

It is an arithmetic number, because the mean of its divisors is an integer number (81102621600).

Almost surely, 2^{1553055440275} is an apocalyptic number.

1553055440275 is a deficient number, since it is larger than the sum of its proper divisors (393407478125).

1553055440275 is a wasteful number, since it uses less digits than its factorization.

1553055440275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 799443 (or 799438 counting only the distinct ones).

The product of its (nonzero) digits is 2100000, while the sum is 46.

The spelling of 1553055440275 in words is "one trillion, five hundred fifty-three billion, fifty-five million, four hundred forty thousand, two hundred seventy-five".