65412451 has 4 divisors (see below), whose sum is σ = 70444192. Its totient is φ = 60380712.

The previous prime is 65412443. The next prime is 65412467. The reversal of 65412451 is 15421456.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65412451 - 2³ = 65412443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65412401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2515851 + ... + 2515876.

It is an arithmetic number, because the mean of its divisors is an integer number (17611048).

Almost surely, 2^65412451 is an apocalyptic number.

65412451 is a deficient number, since it is larger than the sum of its proper divisors (5031741).

65412451 is a wasteful number, since it uses less digits than its factorization.

65412451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5031740.

The product of its digits is 4800, while the sum is 28.

The square root of 65412451 is about 8087.7964242431. The cubic root of 65412451 is about 402.9212204931.

The spelling of 65412451 in words is "sixty-five million, four hundred twelve thousand, four hundred fifty-one".