49212661 has 2 divisors, whose sum is σ = 49212662. Its totient is φ = 49212660.

The previous prime is 49212643. The next prime is 49212697. The reversal of 49212661 is 16621294.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36072036 + 13140625 = 6006^2 + 3625^2 .

It is a cyclic number.

It is not a de Polignac number, because 49212661 - 2¹¹ = 49210613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49212601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24606330 + 24606331.

It is an arithmetic number, because the mean of its divisors is an integer number (24606331).

Almost surely, 2^49212661 is an apocalyptic number.

It is an amenable number.

49212661 is a deficient number, since it is larger than the sum of its proper divisors (1).

49212661 is an equidigital number, since it uses as much as digits as its factorization.

49212661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 31.

The square root of 49212661 is about 7015.1736257915. The cubic root of 49212661 is about 366.4591890493.

The spelling of 49212661 in words is "forty-nine million, two hundred twelve thousand, six hundred sixty-one".