1551552 has 28 divisors (see below), whose sum is σ = 4105656. Its totient is φ = 517120.

The previous prime is 1551551. The next prime is 1551577. The reversal of 1551552 is 2551551.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (1551551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3849 + ... + 4232.

2^1551552 is an apocalyptic number.

1551552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1551552 is an abundant number, since it is smaller than the sum of its proper divisors (2554104).

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

1551552 is an equidigital number, since it uses as much as digits as its factorization.

1551552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8096 (or 8086 counting only the distinct ones).

The product of its digits is 1250, while the sum is 24.

The square root of 1551552 is about 1245.6131020506. The cubic root of 1551552 is about 115.7680661018.

Subtracting 1551552 from its reverse (2551551), we obtain a palindrome (999999).

The spelling of 1551552 in words is "one million, five hundred fifty-one thousand, five hundred fifty-two".