1051105403525 has 24 divisors (see below), whose sum is σ = 1328057621640. Its totient is φ = 824959549440.

The previous prime is 1051105403521. The next prime is 1051105403527. The reversal of 1051105403525 is 5253045011501.

1051105403525 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 12 ways, for example, as 675633036961 + 375472366564 = 821969^2 + 612758^2 .

It is not a de Polignac number, because 1051105403525 - 2² = 1051105403521 is a prime.

It is a super-2 number, since 2×1051105403525² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1051105403491 and 1051105403500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1051105403521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32961989 + ... + 32993861.

It is an arithmetic number, because the mean of its divisors is an integer number (55335734235).

Almost surely, 2^{1051105403525} is an apocalyptic number.

It is an amenable number.

1051105403525 is a deficient number, since it is larger than the sum of its proper divisors (276952218115).

1051105403525 is a wasteful number, since it uses less digits than its factorization.

1051105403525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56825 (or 56820 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 32.

The spelling of 1051105403525 in words is "one trillion, fifty-one billion, one hundred five million, four hundred three thousand, five hundred twenty-five".