5311621 has 8 divisors (see below), whose sum is σ = 6390080. Its totient is φ = 4313088.

The previous prime is 5311601. The next prime is 5311651. The reversal of 5311621 is 1261135.

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

It is a cyclic number.

It is not a de Polignac number, because 5311621 - 2⁵ = 5311589 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5311601) 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, 19836 + ... + 20101.

It is an arithmetic number, because the mean of its divisors is an integer number (798760).

Almost surely, 2^5311621 is an apocalyptic number.

It is an amenable number.

5311621 is a deficient number, since it is larger than the sum of its proper divisors (1078459).

5311621 is a wasteful number, since it uses less digits than its factorization.

5311621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39963.

The product of its digits is 180, while the sum is 19.

The square root of 5311621 is about 2304.6954245626. The cubic root of 5311621 is about 174.4786770989.

Adding to 5311621 its reverse (1261135), we get a palindrome (6572756).

The spelling of 5311621 in words is "five million, three hundred eleven thousand, six hundred twenty-one".