53538290 has 16 divisors (see below), whose sum is σ = 103782168. Its totient is φ = 19767936.

The previous prime is 53538269. The next prime is 53538299. The reversal of 53538290 is 9283535.

It can be written as a sum of positive squares in 4 ways, for example, as 27762361 + 25775929 = 5269^2 + 5077^2 .

It is a super-2 number, since 2×53538290² = 5732696992248200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 53538290.

It is not an unprimeable number, because it can be changed into a prime (53538299) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205787 + ... + 206046.

Almost surely, 2^53538290 is an apocalyptic number.

53538290 is a deficient number, since it is larger than the sum of its proper divisors (50243878).

53538290 is a wasteful number, since it uses less digits than its factorization.

53538290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411853.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 53538290 is about 7316.9864015180. The cubic root of 53538290 is about 376.8959742257.

The spelling of 53538290 in words is "fifty-three million, five hundred thirty-eight thousand, two hundred ninety".