1025653225 has 6 divisors (see below), whose sum is σ = 1271810030. Its totient is φ = 820522560.

The previous prime is 1025653217. The next prime is 1025653241. The reversal of 1025653225 is 5223565201.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 279926361 + 745726864 = 16731^2 + 27308^2 .

It is not a de Polignac number, because 1025653225 - 2³ = 1025653217 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20513040 + ... + 20513089.

Almost surely, 2^1025653225 is an apocalyptic number.

It is an amenable number.

1025653225 is a deficient number, since it is larger than the sum of its proper divisors (246156805).

1025653225 is an equidigital number, since it uses as much as digits as its factorization.

1025653225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41026139 (or 41026134 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 1025653225 is about 32025.8212228820. The cubic root of 1025653225 is about 1008.4789787265.

The spelling of 1025653225 in words is "one billion, twenty-five million, six hundred fifty-three thousand, two hundred twenty-five".