1255442516 has 12 divisors (see below), whose sum is σ = 2229816288. Its totient is φ = 618352152.

The previous prime is 1255442497. The next prime is 1255442563. The reversal of 1255442516 is 6152445521.

It is a super-2 number, since 2×1255442516² = 3152271821960820512, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2341976 + ... + 2342511.

It is an arithmetic number, because the mean of its divisors is an integer number (185818024).

Almost surely, 2^1255442516 is an apocalyptic number.

It is an amenable number.

1255442516 is a deficient number, since it is larger than the sum of its proper divisors (974373772).

1255442516 is a wasteful number, since it uses less digits than its factorization.

1255442516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4684558 (or 4684556 counting only the distinct ones).

The product of its digits is 48000, while the sum is 35.

The square root of 1255442516 is about 35432.2242598457. The cubic root of 1255442516 is about 1078.7784874948.

The spelling of 1255442516 in words is "one billion, two hundred fifty-five million, four hundred forty-two thousand, five hundred sixteen".