1053172005531 has 128 divisors (see below), whose sum is σ = 1619597721600. Its totient is φ = 604835911680.

The previous prime is 1053172005527. The next prime is 1053172005533. The reversal of 1053172005531 is 1355002713501.

It is not a de Polignac number, because 1053172005531 - 2² = 1053172005527 is a prime.

It is a super-2 number, since 2×1053172005531² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1053172005492 and 1053172005501.

It is not an unprimeable number, because it can be changed into a prime (1053172005533) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1555645165 + ... + 1555645841.

It is an arithmetic number, because the mean of its divisors is an integer number (12653107200).

Almost surely, 2^{1053172005531} is an apocalyptic number.

1053172005531 is a deficient number, since it is larger than the sum of its proper divisors (566425716069).

1053172005531 is a wasteful number, since it uses less digits than its factorization.

1053172005531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1169.

The product of its (nonzero) digits is 15750, while the sum is 33.

The spelling of 1053172005531 in words is "one trillion, fifty-three billion, one hundred seventy-two million, five thousand, five hundred thirty-one".