52569290 has 8 divisors (see below), whose sum is σ = 94624740. Its totient is φ = 21027712.

The previous prime is 52569281. The next prime is 52569299. The reversal of 52569290 is 9296525.

It is an interprime number because it is at equal distance from previous prime (52569281) and next prime (52569299).

It can be written as a sum of positive squares in 2 ways, for example, as 52461049 + 108241 = 7243^2 + 329^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×52569290² = 5527060502208200, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52569299) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2628455 + ... + 2628474.

Almost surely, 2^52569290 is an apocalyptic number.

52569290 is a deficient number, since it is larger than the sum of its proper divisors (42055450).

52569290 is a wasteful number, since it uses less digits than its factorization.

52569290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5256936.

The product of its (nonzero) digits is 48600, while the sum is 38.

The square root of 52569290 is about 7250.4682607401. The cubic root of 52569290 is about 374.6082783610.

The spelling of 52569290 in words is "fifty-two million, five hundred sixty-nine thousand, two hundred ninety".