49900621 has 2 divisors, whose sum is σ = 49900622. Its totient is φ = 49900620.

The previous prime is 49900589. The next prime is 49900633. The reversal of 49900621 is 12600994.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41409225 + 8491396 = 6435^2 + 2914^2 .

It is a cyclic number.

It is not a de Polignac number, because 49900621 - 2⁵ = 49900589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49900681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24950310 + 24950311.

It is an arithmetic number, because the mean of its divisors is an integer number (24950311).

Almost surely, 2^49900621 is an apocalyptic number.

It is an amenable number.

49900621 is a deficient number, since it is larger than the sum of its proper divisors (1).

49900621 is an equidigital number, since it uses as much as digits as its factorization.

49900621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 49900621 is about 7064.0371601514. The cubic root of 49900621 is about 368.1589110669.

The spelling of 49900621 in words is "forty-nine million, nine hundred thousand, six hundred twenty-one".