52661090 has 8 divisors (see below), whose sum is σ = 94789980. Its totient is φ = 21064432.

The previous prime is 52661023. The next prime is 52661137. The reversal of 52661090 is 9016625.

It can be written as a sum of positive squares in 2 ways, for example, as 47375689 + 5285401 = 6883^2 + 2299^2 .

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, 2633045 + ... + 2633064.

Almost surely, 2^52661090 is an apocalyptic number.

52661090 is a deficient number, since it is larger than the sum of its proper divisors (42128890).

52661090 is a wasteful number, since it uses less digits than its factorization.

52661090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5266116.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 52661090 is about 7256.7961250127. The cubic root of 52661090 is about 374.8262068757.

It can be divided in two parts, 526 and 61090, that added together give a palindrome (61616).

The spelling of 52661090 in words is "fifty-two million, six hundred sixty-one thousand, ninety".