52217090 has 8 divisors (see below), whose sum is σ = 93990780. Its totient is φ = 20886832.

The previous prime is 52217083. The next prime is 52217129. The reversal of 52217090 is 9071225.

It can be written as a sum of positive squares in 2 ways, for example, as 47293129 + 4923961 = 6877^2 + 2219^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2610845 + ... + 2610864.

Almost surely, 2^52217090 is an apocalyptic number.

52217090 is a deficient number, since it is larger than the sum of its proper divisors (41773690).

52217090 is a wasteful number, since it uses less digits than its factorization.

52217090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5221716.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 52217090 is about 7226.1393565306. The cubic root of 52217090 is about 373.7698117409.

The spelling of 52217090 in words is "fifty-two million, two hundred seventeen thousand, ninety".