1552542120 has 128 divisors (see below), whose sum is σ = 5190566400. Its totient is φ = 412777728.

The previous prime is 1552542083. The next prime is 1552542149. The reversal of 1552542120 is 212452551.

1552542120 is a `hidden beast` number, since 15 + 525 + 4 + 2 + 120 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 394402 + ... + 398318.

It is an arithmetic number, because the mean of its divisors is an integer number (40551300).

Almost surely, 2^1552542120 is an apocalyptic number.

1552542120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1552542120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2595283200).

1552542120 is an abundant number, since it is smaller than the sum of its proper divisors (3638024280).

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

1552542120 is a wasteful number, since it uses less digits than its factorization.

1552542120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4304 (or 4294 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 1552542120 is about 39402.3110997312. The cubic root of 1552542120 is about 1157.9268659013.

Adding to 1552542120 its reverse (212452551), we get a palindrome (1764994671).

The spelling of 1552542120 in words is "one billion, five hundred fifty-two million, five hundred forty-two thousand, one hundred twenty".