53382390 has 32 divisors (see below), whose sum is σ = 128321280. Its totient is φ = 14212704.

The previous prime is 53382389. The next prime is 53382391. The reversal of 53382390 is 9328335.

It is an interprime number because it is at equal distance from previous prime (53382389) and next prime (53382391).

It is a super-2 number, since 2×53382390² = 5699359124224200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53382391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27471 + ... + 29349.

It is an arithmetic number, because the mean of its divisors is an integer number (4010040).

Almost surely, 2^53382390 is an apocalyptic number.

53382390 is an abundant number, since it is smaller than the sum of its proper divisors (74938890).

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

53382390 is a wasteful number, since it uses less digits than its factorization.

53382390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2836.

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 53382390 is about 7306.3253417843. The cubic root of 53382390 is about 376.5297864122.

The spelling of 53382390 in words is "fifty-three million, three hundred eighty-two thousand, three hundred ninety".