65526490 has 16 divisors (see below), whose sum is σ = 118114920. Its totient is φ = 26173440.

The previous prime is 65526481. The next prime is 65526491. The reversal of 65526490 is 9462556.

It can be written as a sum of positive squares in 4 ways, for example, as 48986001 + 16540489 = 6999^2 + 4067^2 .

It is not an unprimeable number, because it can be changed into a prime (65526491) 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, 3430 + ... + 11950.

Almost surely, 2^65526490 is an apocalyptic number.

65526490 is a deficient number, since it is larger than the sum of its proper divisors (52588430).

65526490 is a wasteful number, since it uses less digits than its factorization.

65526490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9297.

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 65526490 is about 8094.8434203510. The cubic root of 65526490 is about 403.1552333153.

The spelling of 65526490 in words is "sixty-five million, five hundred twenty-six thousand, four hundred ninety".