1025165255 has 16 divisors (see below), whose sum is σ = 1240294944. Its totient is φ = 813421440.

The previous prime is 1025165243. The next prime is 1025165359. The reversal of 1025165255 is 5525615201.

It is not a de Polignac number, because 1025165255 - 2⁸ = 1025164999 is a prime.

It is a Duffinian number.

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, 668840 + ... + 670370.

It is an arithmetic number, because the mean of its divisors is an integer number (77518434).

Almost surely, 2^1025165255 is an apocalyptic number.

1025165255 is a deficient number, since it is larger than the sum of its proper divisors (215129689).

1025165255 is a wasteful number, since it uses less digits than its factorization.

1025165255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2546.

The product of its (nonzero) digits is 15000, while the sum is 32.

The square root of 1025165255 is about 32018.2019326507. The cubic root of 1025165255 is about 1008.3190203252.

The spelling of 1025165255 in words is "one billion, twenty-five million, one hundred sixty-five thousand, two hundred fifty-five".