49613621 has 2 divisors, whose sum is σ = 49613622. Its totient is φ = 49613620.

The previous prime is 49613611. The next prime is 49613677. The reversal of 49613621 is 12631694.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49420900 + 192721 = 7030^2 + 439^2 .

It is a cyclic number.

It is not a de Polignac number, because 49613621 - 2¹⁴ = 49597237 is a prime.

It is a super-2 number, since 2×49613621² = 4923022777463282, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49613611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24806810 + 24806811.

It is an arithmetic number, because the mean of its divisors is an integer number (24806811).

Almost surely, 2^49613621 is an apocalyptic number.

It is an amenable number.

49613621 is a deficient number, since it is larger than the sum of its proper divisors (1).

49613621 is an equidigital number, since it uses as much as digits as its factorization.

49613621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 32.

The square root of 49613621 is about 7043.6937043003. The cubic root of 49613621 is about 367.4517400030.

The spelling of 49613621 in words is "forty-nine million, six hundred thirteen thousand, six hundred twenty-one".