1061420250055 has 32 divisors (see below), whose sum is σ = 1436636620800. Its totient is φ = 745833052800.

The previous prime is 1061420250043. The next prime is 1061420250097. The reversal of 1061420250055 is 5500520241601.

It is not a de Polignac number, because 1061420250055 - 2¹³ = 1061420241863 is a prime.

It is a super-2 number, since 2×1061420250055² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 1061420249999 and 1061420250026.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 552541 + ... + 1558249.

It is an arithmetic number, because the mean of its divisors is an integer number (44894894400).

Almost surely, 2^{1061420250055} is an apocalyptic number.

1061420250055 is a deficient number, since it is larger than the sum of its proper divisors (375216370745).

1061420250055 is a wasteful number, since it uses less digits than its factorization.

1061420250055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1006375.

The product of its (nonzero) digits is 12000, while the sum is 31.

Adding to 1061420250055 its reverse (5500520241601), we get a palindrome (6561940491656).

The spelling of 1061420250055 in words is "one trillion, sixty-one billion, four hundred twenty million, two hundred fifty thousand, fifty-five".