1025213530 has 16 divisors (see below), whose sum is σ = 2013146784. Its totient is φ = 372804880.

The previous prime is 1025213521. The next prime is 1025213537. The reversal of 1025213530 is 353125201.

1025213530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (1025213537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4659952 + ... + 4660171.

It is an arithmetic number, because the mean of its divisors is an integer number (125821674).

Almost surely, 2^1025213530 is an apocalyptic number.

1025213530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1025213530 is a deficient number, since it is larger than the sum of its proper divisors (987933254).

1025213530 is a wasteful number, since it uses less digits than its factorization.

1025213530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9320141.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 1025213530 is about 32018.9557918431. The cubic root of 1025213530 is about 1008.3348473139.

Adding to 1025213530 its reverse (353125201), we get a palindrome (1378338731).

The spelling of 1025213530 in words is "one billion, twenty-five million, two hundred thirteen thousand, five hundred thirty".