1025534321 has 16 divisors (see below), whose sum is σ = 1179264000. Its totient is φ = 873631440.

The previous prime is 1025534317. The next prime is 1025534347. The reversal of 1025534321 is 1234355201.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1025534321 - 2² = 1025534317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1025534621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1155740 + ... + 1156626.

It is an arithmetic number, because the mean of its divisors is an integer number (73704000).

Almost surely, 2^1025534321 is an apocalyptic number.

It is an amenable number.

1025534321 is a deficient number, since it is larger than the sum of its proper divisors (153729679).

1025534321 is an equidigital number, since it uses as much as digits as its factorization.

1025534321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1724.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 1025534321 is about 32023.9647920116. The cubic root of 1025534321 is about 1008.4400062240.

Adding to 1025534321 its reverse (1234355201), we get a palindrome (2259889522).

The spelling of 1025534321 in words is "one billion, twenty-five million, five hundred thirty-four thousand, three hundred twenty-one".