1255979534 has 16 divisors (see below), whose sum is σ = 1984294800. Its totient is φ = 594586944.

The previous prime is 1255979503. The next prime is 1255979537. The reversal of 1255979534 is 4359795521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255979537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62522 + ... + 80130.

It is an arithmetic number, because the mean of its divisors is an integer number (124018425).

Almost surely, 2^1255979534 is an apocalyptic number.

1255979534 is a deficient number, since it is larger than the sum of its proper divisors (728315266).

1255979534 is a wasteful number, since it uses less digits than its factorization.

1255979534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19507.

The product of its digits is 1701000, while the sum is 50.

The square root of 1255979534 is about 35439.8015513631. The cubic root of 1255979534 is about 1078.9322821066.

The spelling of 1255979534 in words is "one billion, two hundred fifty-five million, nine hundred seventy-nine thousand, five hundred thirty-four".