1025012633 has 4 divisors (see below), whose sum is σ = 1044352548. Its totient is φ = 1005672720.

The previous prime is 1025012617. The next prime is 1025012647. The reversal of 1025012633 is 3362105201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 654950464 + 370062169 = 25592^2 + 19237^2 .

It is a cyclic number.

It is not a de Polignac number, because 1025012633 - 2⁴ = 1025012617 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1025012599 and 1025012608.

It is not an unprimeable number, because it can be changed into a prime (1025012663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9669878 + ... + 9669983.

It is an arithmetic number, because the mean of its divisors is an integer number (261088137).

Almost surely, 2^1025012633 is an apocalyptic number.

It is an amenable number.

1025012633 is a deficient number, since it is larger than the sum of its proper divisors (19339915).

1025012633 is an equidigital number, since it uses as much as digits as its factorization.

1025012633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19339914.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 1025012633 is about 32015.8184808697. The cubic root of 1025012633 is about 1008.2689798391.

Adding to 1025012633 its reverse (3362105201), we get a palindrome (4387117834).

The spelling of 1025012633 in words is "one billion, twenty-five million, twelve thousand, six hundred thirty-three".