1025455225 has 24 divisors (see below), whose sum is σ = 1327158360. Its totient is φ = 785003520.

The previous prime is 1025455219. The next prime is 1025455237. The reversal of 1025455225 is 5225545201.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 309197056 + 716258169 = 17584^2 + 26763^2 .

It is not a de Polignac number, because 1025455225 - 2³ = 1025455217 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 75667 + ... + 88183.

It is an arithmetic number, because the mean of its divisors is an integer number (55298265).

Almost surely, 2^1025455225 is an apocalyptic number.

It is an amenable number.

1025455225 is a deficient number, since it is larger than the sum of its proper divisors (301703135).

1025455225 is a wasteful number, since it uses less digits than its factorization.

1025455225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12669 (or 12664 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 31.

The square root of 1025455225 is about 32022.7298180527. The cubic root of 1025455225 is about 1008.4140796997.

The spelling of 1025455225 in words is "one billion, twenty-five million, four hundred fifty-five thousand, two hundred twenty-five".