1025411402 has 4 divisors (see below), whose sum is σ = 1538117106. Its totient is φ = 512705700.

The previous prime is 1025411339. The next prime is 1025411407. The reversal of 1025411402 is 2041145201.

It is a happy number.

1025411402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 1024704121 + 707281 = 32011^2 + 841^2 .

It is not an unprimeable number, because it can be changed into a prime (1025411407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256352849 + ... + 256352852.

Almost surely, 2^1025411402 is an apocalyptic number.

1025411402 is a deficient number, since it is larger than the sum of its proper divisors (512705704).

1025411402 is an equidigital number, since it uses as much as digits as its factorization.

1025411402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512705703.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 1025411402 is about 32022.0455623934. The cubic root of 1025411402 is about 1008.3997145804.

Adding to 1025411402 its reverse (2041145201), we get a palindrome (3066556603).

The spelling of 1025411402 in words is "one billion, twenty-five million, four hundred eleven thousand, four hundred two".