16552290 has 16 divisors (see below), whose sum is σ = 39725568. Its totient is φ = 4413936.

The previous prime is 16552267. The next prime is 16552303. The reversal of 16552290 is 9225561.

It is a happy number.

16552290 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 551743 = 16552290 / (1 + 6 + 5 + 5 + 2 + 2 + 9 + 0).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 275842 + ... + 275901.

It is an arithmetic number, because the mean of its divisors is an integer number (2482848).

Almost surely, 2^16552290 is an apocalyptic number.

16552290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16552290 is an abundant number, since it is smaller than the sum of its proper divisors (23173278).

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

16552290 is a wasteful number, since it uses less digits than its factorization.

16552290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551753.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 16552290 is about 4068.4505650186. The cubic root of 16552290 is about 254.8508162380.

The spelling of 16552290 in words is "sixteen million, five hundred fifty-two thousand, two hundred ninety".