1651552 has 48 divisors (see below), whose sum is σ = 3804192. Its totient is φ = 691200.

The previous prime is 1651547. The next prime is 1651553. The reversal of 1651552 is 2551561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1651553) 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, 16302 + ... + 16402.

It is an arithmetic number, because the mean of its divisors is an integer number (79254).

2^1651552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1651552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1902096).

1651552 is an abundant number, since it is smaller than the sum of its proper divisors (2152640).

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

1651552 is a wasteful number, since it uses less digits than its factorization.

1651552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191 (or 183 counting only the distinct ones).

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

The square root of 1651552 is about 1285.1272310554. The cubic root of 1651552 is about 118.2036128354.

Subtracting 1651552 from its reverse (2551561), we obtain a palindrome (900009).

The spelling of 1651552 in words is "one million, six hundred fifty-one thousand, five hundred fifty-two".