5130121556 has 24 divisors (see below), whose sum is σ = 10510495296. Its totient is φ = 2144998080.

The previous prime is 5130121517. The next prime is 5130121559. The reversal of 5130121556 is 6551210315.

It is a super-2 number, since 2×5130121556² = 52636294358671722272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5130121559) 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, 2233226 + ... + 2235521.

It is an arithmetic number, because the mean of its divisors is an integer number (437937304).

Almost surely, 2^5130121556 is an apocalyptic number.

It is an amenable number.

5130121556 is an abundant number, since it is smaller than the sum of its proper divisors (5380373740).

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

5130121556 is a wasteful number, since it uses less digits than its factorization.

5130121556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4468799 (or 4468797 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 5130121556 is about 71624.8668829479. The cubic root of 5130121556 is about 1724.6827456603.

The spelling of 5130121556 in words is "five billion, one hundred thirty million, one hundred twenty-one thousand, five hundred fifty-six".