64404052 has 6 divisors (see below), whose sum is σ = 112707098. Its totient is φ = 32202024.

The previous prime is 64403947. The next prime is 64404061. The reversal of 64404052 is 25040446.

It can be written as a sum of positive squares in only one way, i.e., 52041796 + 12362256 = 7214^2 + 3516^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8050503 + ... + 8050510.

Almost surely, 2^64404052 is an apocalyptic number.

It is an amenable number.

64404052 is a deficient number, since it is larger than the sum of its proper divisors (48303046).

64404052 is a wasteful number, since it uses less digits than its factorization.

64404052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16101017 (or 16101015 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 64404052 is about 8025.2135174087. The cubic root of 64404052 is about 400.8400097243.

Adding to 64404052 its reverse (25040446), we get a palindrome (89444498).

The spelling of 64404052 in words is "sixty-four million, four hundred four thousand, fifty-two".