1025321502534 has 64 divisors (see below), whose sum is σ = 2360359872000. Its totient is φ = 290854752768.

The previous prime is 1025321502511. The next prime is 1025321502539. The reversal of 1025321502534 is 4352051235201.

It is a junction number, because it is equal to n+sod(n) for n = 1025321502495 and 1025321502504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025321502539) by changing a digit.

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, 14652622 + ... + 14722430.

It is an arithmetic number, because the mean of its divisors is an integer number (36880623000).

Almost surely, 2^{1025321502534} is an apocalyptic number.

1025321502534 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1025321502534 is an abundant number, since it is smaller than the sum of its proper divisors (1335038369466).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1025321502534 is a wasteful number, since it uses less digits than its factorization.

1025321502534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72317.

The product of its (nonzero) digits is 36000, while the sum is 33.

Adding to 1025321502534 its reverse (4352051235201), we get a palindrome (5377372737735).

The spelling of 1025321502534 in words is "one trillion, twenty-five billion, three hundred twenty-one million, five hundred two thousand, five hundred thirty-four".