5216451 has 8 divisors (see below), whose sum is σ = 6976704. Its totient is φ = 3466920.

The previous prime is 5216443. The next prime is 5216461. The reversal of 5216451 is 1546125.

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

It is not a de Polignac number, because 5216451 - 2³ = 5216443 is a prime.

It is a super-2 number, since 2×5216451² = 54422722070802, which contains 22 as substring.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (5216411) 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, 1465 + ... + 3546.

It is an arithmetic number, because the mean of its divisors is an integer number (872088).

Almost surely, 2^5216451 is an apocalyptic number.

5216451 is the 1445-th centered pentagonal number.

5216451 is a deficient number, since it is larger than the sum of its proper divisors (1760253).

5216451 is a wasteful number, since it uses less digits than its factorization.

5216451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5361.

The product of its digits is 1200, while the sum is 24.

The square root of 5216451 is about 2283.9551221510. The cubic root of 5216451 is about 173.4303274528.

The spelling of 5216451 in words is "five million, two hundred sixteen thousand, four hundred fifty-one".