1255757085 has 48 divisors (see below), whose sum is σ = 2380105728. Its totient is φ = 607420800.

The previous prime is 1255757033. The next prime is 1255757117. The reversal of 1255757085 is 5807575521.

1255757085 is a `hidden beast` number, since 1 + 2 + 5 + 575 + 70 + 8 + 5 = 666.

It is not a de Polignac number, because 1255757085 - 2⁹ = 1255756573 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1255757085.

It is a congruent number.

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, 225444 + ... + 230946.

It is an arithmetic number, because the mean of its divisors is an integer number (49585536).

Almost surely, 2^1255757085 is an apocalyptic number.

1255757085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1255757085 is a deficient number, since it is larger than the sum of its proper divisors (1124348643).

1255757085 is a wasteful number, since it uses less digits than its factorization.

1255757085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5986 (or 5983 counting only the distinct ones).

The product of its (nonzero) digits is 490000, while the sum is 45.

The square root of 1255757085 is about 35436.6630059886. The cubic root of 1255757085 is about 1078.8685810745.

The spelling of 1255757085 in words is "one billion, two hundred fifty-five million, seven hundred fifty-seven thousand, eighty-five".