53908290 has 24 divisors (see below), whose sum is σ = 140161788. Its totient is φ = 14375520.

The previous prime is 53908289. The next prime is 53908291. The reversal of 53908290 is 9280935.

It is an interprime number because it is at equal distance from previous prime (53908289) and next prime (53908291).

It can be written as a sum of positive squares in 2 ways, for example, as 53626329 + 281961 = 7323^2 + 531^2 .

It is a super-2 number, since 2×53908290² = 5812207461448200, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (53908291) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 299401 + ... + 299580.

Almost surely, 2^53908290 is an apocalyptic number.

53908290 is an abundant number, since it is smaller than the sum of its proper divisors (86253498).

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

53908290 is a wasteful number, since it uses less digits than its factorization.

53908290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 598994 (or 598991 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 53908290 is about 7342.2265015457. The cubic root of 53908290 is about 377.7622171279.

The spelling of 53908290 in words is "fifty-three million, nine hundred eight thousand, two hundred ninety".