53272290 has 16 divisors (see below), whose sum is σ = 127853568. Its totient is φ = 14205936.

The previous prime is 53272279. The next prime is 53272343. The reversal of 53272290 is 9227235.

It is a happy number.

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: 1775743 = 53272290 / (5 + 3 + 2 + 7 + 2 + 2 + 9 + 0).

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, 887842 + ... + 887901.

It is an arithmetic number, because the mean of its divisors is an integer number (7990848).

Almost surely, 2^53272290 is an apocalyptic number.

53272290 is an abundant number, since it is smaller than the sum of its proper divisors (74581278).

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

53272290 is a wasteful number, since it uses less digits than its factorization.

53272290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1775753.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 53272290 is about 7298.7868855036. The cubic root of 53272290 is about 376.2707467874.

The spelling of 53272290 in words is "fifty-three million, two hundred seventy-two thousand, two hundred ninety".