1025564395 has 8 divisors (see below), whose sum is σ = 1232115120. Its totient is φ = 819492960.

The previous prime is 1025564369. The next prime is 1025564429. The reversal of 1025564395 is 5934655201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1025564395 - 2⁹ = 1025563883 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115096 + ... + 123685.

It is an arithmetic number, because the mean of its divisors is an integer number (154014390).

Almost surely, 2^1025564395 is an apocalyptic number.

1025564395 is a deficient number, since it is larger than the sum of its proper divisors (206550725).

1025564395 is an equidigital number, since it uses as much as digits as its factorization.

1025564395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239645.

The product of its (nonzero) digits is 162000, while the sum is 40.

The square root of 1025564395 is about 32024.4343431699. The cubic root of 1025564395 is about 1008.4498636962.

The spelling of 1025564395 in words is "one billion, twenty-five million, five hundred sixty-four thousand, three hundred ninety-five".