1255235516 has 6 divisors (see below), whose sum is σ = 2196662160. Its totient is φ = 627617756.

The previous prime is 1255235479. The next prime is 1255235519. The reversal of 1255235516 is 6155325521.

It is a super-3 number, since 3×1255235516³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255235519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156904436 + ... + 156904443.

It is an arithmetic number, because the mean of its divisors is an integer number (366110360).

Almost surely, 2^1255235516 is an apocalyptic number.

It is an amenable number.

1255235516 is a deficient number, since it is larger than the sum of its proper divisors (941426644).

1255235516 is a wasteful number, since it uses less digits than its factorization.

1255235516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313808883 (or 313808881 counting only the distinct ones).

The product of its digits is 45000, while the sum is 35.

The square root of 1255235516 is about 35429.3030696343. The cubic root of 1255235516 is about 1078.7191938146.

The spelling of 1255235516 in words is "one billion, two hundred fifty-five million, two hundred thirty-five thousand, five hundred sixteen".