1025111456 has 12 divisors (see below), whose sum is σ = 2018188242. Its totient is φ = 512555712.

The previous prime is 1025111453. The next prime is 1025111497. The reversal of 1025111456 is 6541115201.

It can be written as a sum of positive squares in only one way, i.e., 959760400 + 65351056 = 30980^2 + 8084^2 .

It is not an unprimeable number, because it can be changed into a prime (1025111453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16017335 + ... + 16017398.

Almost surely, 2^1025111456 is an apocalyptic number.

1025111456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1025111456 is a deficient number, since it is larger than the sum of its proper divisors (993076786).

1025111456 is an equidigital number, since it uses as much as digits as its factorization.

1025111456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32034743 (or 32034735 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 26.

The square root of 1025111456 is about 32017.3617901288. The cubic root of 1025111456 is about 1008.3013817043.

Adding to 1025111456 its reverse (6541115201), we get a palindrome (7566226657).

The spelling of 1025111456 in words is "one billion, twenty-five million, one hundred eleven thousand, four hundred fifty-six".