3125511420 has 96 divisors (see below), whose sum is σ = 8837301312. Its totient is φ = 825335808.

The previous prime is 3125511391. The next prime is 3125511427. The reversal of 3125511420 is 241155213.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3125511427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3663714 + ... + 3664566.

It is an arithmetic number, because the mean of its divisors is an integer number (92055222).

Almost surely, 2^3125511420 is an apocalyptic number.

3125511420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3125511420 is an abundant number, since it is smaller than the sum of its proper divisors (5711789892).

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

3125511420 is a wasteful number, since it uses less digits than its factorization.

3125511420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1391 (or 1389 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 3125511420 is about 55906.2735299000. The cubic root of 3125511420 is about 1462.0886194842.

Adding to 3125511420 its reverse (241155213), we get a palindrome (3366666633).

The spelling of 3125511420 in words is "three billion, one hundred twenty-five million, five hundred eleven thousand, four hundred twenty".