65022490 has 16 divisors (see below), whose sum is σ = 126043848. Its totient is φ = 24008256.

The previous prime is 65022473. The next prime is 65022511. The reversal of 65022490 is 9422056.

It can be written as a sum of positive squares in 4 ways, for example, as 59644729 + 5377761 = 7723^2 + 2319^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 249957 + ... + 250216.

Almost surely, 2^65022490 is an apocalyptic number.

65022490 is a deficient number, since it is larger than the sum of its proper divisors (61021358).

65022490 is a wasteful number, since it uses less digits than its factorization.

65022490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500193.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 65022490 is about 8063.6523982622. The cubic root of 65022490 is about 402.1189428821.

The spelling of 65022490 in words is "sixty-five million, twenty-two thousand, four hundred ninety".