1551325120 has 28 divisors (see below), whose sum is σ = 3694093704. Its totient is φ = 620529920.

The previous prime is 1551325093. The next prime is 1551325163. The reversal of 1551325120 is 215231551.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2423626 + ... + 2424265.

It is an arithmetic number, because the mean of its divisors is an integer number (131931918).

Almost surely, 2^1551325120 is an apocalyptic number.

1551325120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1551325120 is an abundant number, since it is smaller than the sum of its proper divisors (2142768584).

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

1551325120 is an equidigital number, since it uses as much as digits as its factorization.

1551325120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4847908 (or 4847898 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 1551325120 is about 39386.8648155702. The cubic root of 1551325120 is about 1157.6242299105.

Adding to 1551325120 its reverse (215231551), we get a palindrome (1766556671).

The spelling of 1551325120 in words is "one billion, five hundred fifty-one million, three hundred twenty-five thousand, one hundred twenty".