1025111251005 has 32 divisors (see below), whose sum is σ = 1685650834560. Its totient is φ = 531679438080.

The previous prime is 1025111250997. The next prime is 1025111251069. The reversal of 1025111251005 is 5001521115201.

It is not a de Polignac number, because 1025111251005 - 2³ = 1025111250997 is a prime.

It is a super-2 number, since 2×1025111251005² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3322426 + ... + 3617835.

It is an arithmetic number, because the mean of its divisors is an integer number (52676588580).

Almost surely, 2^{1025111251005} is an apocalyptic number.

1025111251005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1025111251005 is a deficient number, since it is larger than the sum of its proper divisors (660539583555).

1025111251005 is a wasteful number, since it uses less digits than its factorization.

1025111251005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6940541.

The product of its (nonzero) digits is 500, while the sum is 24.

Adding to 1025111251005 its reverse (5001521115201), we get a palindrome (6026632366206).

The spelling of 1025111251005 in words is "one trillion, twenty-five billion, one hundred eleven million, two hundred fifty-one thousand, five".