1255653582 has 32 divisors (see below), whose sum is σ = 2656412928. Its totient is φ = 394865856.

The previous prime is 1255653557. The next prime is 1255653587. The reversal of 1255653582 is 2853565521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255653587) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52248 + ... + 72395.

It is an arithmetic number, because the mean of its divisors is an integer number (83012904).

Almost surely, 2^1255653582 is an apocalyptic number.

1255653582 is an abundant number, since it is smaller than the sum of its proper divisors (1400759346).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1255653582 is a wasteful number, since it uses less digits than its factorization.

1255653582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124744.

The product of its digits is 360000, while the sum is 42.

The square root of 1255653582 is about 35435.2025816137. The cubic root of 1255653582 is about 1078.8389391413.

The spelling of 1255653582 in words is "one billion, two hundred fifty-five million, six hundred fifty-three thousand, five hundred eighty-two".