1025510265 has 48 divisors (see below), whose sum is σ = 1925541072. Its totient is φ = 501898752.

The previous prime is 1025510257. The next prime is 1025510273. The reversal of 1025510265 is 5620155201.

1025510265 is a `hidden beast` number, since 102 + 551 + 0 + 2 + 6 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (1025510257) and next prime (1025510273).

It can be written as a sum of positive squares in 8 ways, for example, as 18844281 + 1006665984 = 4341^2 + 31728^2 .

It is not a de Polignac number, because 1025510265 - 2³ = 1025510257 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 96139 + ... + 106271.

It is an arithmetic number, because the mean of its divisors is an integer number (40115439).

Almost surely, 2^1025510265 is an apocalyptic number.

1025510265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1025510265 is a deficient number, since it is larger than the sum of its proper divisors (900030807).

1025510265 is a wasteful number, since it uses less digits than its factorization.

1025510265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10330 (or 10327 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 1025510265 is about 32023.5891960911. The cubic root of 1025510265 is about 1008.4321211563.

Adding to 1025510265 its reverse (5620155201), we get a palindrome (6645665466).

The spelling of 1025510265 in words is "one billion, twenty-five million, five hundred ten thousand, two hundred sixty-five".