1025663528 has 16 divisors (see below), whose sum is σ = 1927279680. Its totient is φ = 511722288.

The previous prime is 1025663521. The next prime is 1025663539. The reversal of 1025663528 is 8253665201.

It is a junction number, because it is equal to n+sod(n) for n = 1025663491 and 1025663500.

It is not an unprimeable number, because it can be changed into a prime (1025663521) 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, 134750 + ... + 142157.

It is an arithmetic number, because the mean of its divisors is an integer number (120454980).

Almost surely, 2^1025663528 is an apocalyptic number.

It is an amenable number.

1025663528 is a deficient number, since it is larger than the sum of its proper divisors (901616152).

1025663528 is a wasteful number, since it uses less digits than its factorization.

1025663528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277376 (or 277372 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 38.

The square root of 1025663528 is about 32025.9820770574. The cubic root of 1025663528 is about 1008.4823555416.

The spelling of 1025663528 in words is "one billion, twenty-five million, six hundred sixty-three thousand, five hundred twenty-eight".