15552801 has 24 divisors (see below), whose sum is σ = 24720384. Its totient is φ = 9344160.

The previous prime is 15552781. The next prime is 15552829. The reversal of 15552801 is 10825551.

It is not a de Polignac number, because 15552801 - 2⁶ = 15552737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15552871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11955 + ... + 13191.

It is an arithmetic number, because the mean of its divisors is an integer number (1030016).

Almost surely, 2^15552801 is an apocalyptic number.

15552801 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

15552801 is a deficient number, since it is larger than the sum of its proper divisors (9167583).

15552801 is a wasteful number, since it uses less digits than its factorization.

15552801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1381 (or 1378 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 27.

The square root of 15552801 is about 3943.7039696204. The cubic root of 15552801 is about 249.6143440505.

It can be divided in two parts, 1555 and 2801, that added together give a square (4356 = 66²).

The spelling of 15552801 in words is "fifteen million, five hundred fifty-two thousand, eight hundred one".