1025535999956 has 48 divisors (see below), whose sum is σ = 2007280613520. Its totient is φ = 455357168640.

The previous prime is 1025535999941. The next prime is 1025535999979. The reversal of 1025535999956 is 6599995355201.

It can be written as a sum of positive squares in 8 ways, for example, as 165743437456 + 859792562500 = 407116^2 + 927250^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2823275 + ... + 3165746.

It is an arithmetic number, because the mean of its divisors is an integer number (41818346115).

Almost surely, 2^{1025535999956} is an apocalyptic number.

It is an amenable number.

1025535999956 is a deficient number, since it is larger than the sum of its proper divisors (981744613564).

1025535999956 is a wasteful number, since it uses less digits than its factorization.

1025535999956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5989164 (or 5989162 counting only the distinct ones).

The product of its (nonzero) digits is 147622500, while the sum is 68.

The spelling of 1025535999956 in words is "one trillion, twenty-five billion, five hundred thirty-five million, nine hundred ninety-nine thousand, nine hundred fifty-six".