1025504365 has 16 divisors (see below), whose sum is σ = 1253012400. Its totient is φ = 805565952.

The previous prime is 1025504357. The next prime is 1025504387. The reversal of 1025504365 is 5634055201.

It can be written as a sum of positive squares in 8 ways, for example, as 234151204 + 791353161 = 15302^2 + 28131^2 .

It is a cyclic number.

It is not a de Polignac number, because 1025504365 - 2³ = 1025504357 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77451 + ... + 89719.

It is an arithmetic number, because the mean of its divisors is an integer number (78313275).

Almost surely, 2^1025504365 is an apocalyptic number.

It is an amenable number.

1025504365 is a deficient number, since it is larger than the sum of its proper divisors (227508035).

1025504365 is a wasteful number, since it uses less digits than its factorization.

1025504365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12576.

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

The square root of 1025504365 is about 32023.4970763657. The cubic root of 1025504365 is about 1008.4301872375.

Adding to 1025504365 its reverse (5634055201), we get a palindrome (6659559566).

The spelling of 1025504365 in words is "one billion, twenty-five million, five hundred four thousand, three hundred sixty-five".