64225513 has 8 divisors (see below), whose sum is σ = 70142976. Its totient is φ = 58321200.

The previous prime is 64225489. The next prime is 64225519. The reversal of 64225513 is 31552246.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64225513 is a prime.

It is a super-2 number, since 2×64225513² = 8249833040226338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64225519) by changing a digit.

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, 8920 + ... + 14422.

It is an arithmetic number, because the mean of its divisors is an integer number (8767872).

Almost surely, 2^64225513 is an apocalyptic number.

It is an amenable number.

64225513 is a deficient number, since it is larger than the sum of its proper divisors (5917463).

64225513 is a wasteful number, since it uses less digits than its factorization.

64225513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6575.

The product of its digits is 7200, while the sum is 28.

The square root of 64225513 is about 8014.0821682835. The cubic root of 64225513 is about 400.4692680036.

Adding to 64225513 its reverse (31552246), we get a palindrome (95777759).

It can be divided in two parts, 6422 and 5513, that added together give a triangular number (11935 = T₁₅₄).

The spelling of 64225513 in words is "sixty-four million, two hundred twenty-five thousand, five hundred thirteen".