5137621 has 4 divisors (see below), whose sum is σ = 5439852. Its totient is φ = 4835392.

The previous prime is 5137547. The next prime is 5137651. The reversal of 5137621 is 1267315.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4157521 + 980100 = 2039^2 + 990^2 .

It is a cyclic number.

It is not a de Polignac number, because 5137621 - 2¹¹ = 5135573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5137651) 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, 151090 + ... + 151123.

It is an arithmetic number, because the mean of its divisors is an integer number (1359963).

Almost surely, 2^5137621 is an apocalyptic number.

It is an amenable number.

5137621 is a deficient number, since it is larger than the sum of its proper divisors (302231).

5137621 is a wasteful number, since it uses less digits than its factorization.

5137621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302230.

The product of its digits is 1260, while the sum is 25.

The square root of 5137621 is about 2266.6320830695. The cubic root of 5137621 is about 172.5522742924.

The spelling of 5137621 in words is "five million, one hundred thirty-seven thousand, six hundred twenty-one".