1025407263 has 8 divisors (see below), whose sum is σ = 1374294448. Its totient is φ = 680062464.

The previous prime is 1025407237. The next prime is 1025407301. The reversal of 1025407263 is 3627045201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1025407263 - 2⁵ = 1025407231 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1025407263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025407763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 884920 + ... + 886077.

It is an arithmetic number, because the mean of its divisors is an integer number (171786806).

Almost surely, 2^1025407263 is an apocalyptic number.

1025407263 is a deficient number, since it is larger than the sum of its proper divisors (348887185).

1025407263 is a wasteful number, since it uses less digits than its factorization.

1025407263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1771193.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 1025407263 is about 32021.9809349765. The cubic root of 1025407263 is about 1008.3983578008.

The spelling of 1025407263 in words is "one billion, twenty-five million, four hundred seven thousand, two hundred sixty-three".