1555254012 has 24 divisors (see below), whose sum is σ = 3908074576. Its totient is φ = 478539648.

The previous prime is 1555253969. The next prime is 1555254037. The reversal of 1555254012 is 2104525551.

It is a super-2 number, since 2×1555254012² = 4837630083684192288, 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 7 ways as a sum of consecutive naturals, for example, 4984633 + ... + 4984944.

Almost surely, 2^1555254012 is an apocalyptic number.

1555254012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1555254012 is an abundant number, since it is smaller than the sum of its proper divisors (2352820564).

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

1555254012 is a wasteful number, since it uses less digits than its factorization.

1555254012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9969597 (or 9969595 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 30.

The square root of 1555254012 is about 39436.7089397683. The cubic root of 1555254012 is about 1158.6006739262.

Adding to 1555254012 its reverse (2104525551), we get a palindrome (3659779563).

The spelling of 1555254012 in words is "one billion, five hundred fifty-five million, two hundred fifty-four thousand, twelve".