49622981 has 4 divisors (see below), whose sum is σ = 50251200. Its totient is φ = 48994764.

The previous prime is 49622977. The next prime is 49623001. The reversal of 49622981 is 18922694.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 49622981 - 2² = 49622977 is a prime.

It is a super-2 number, since 2×49622981² = 4924880486652722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49622941) 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, 313991 + ... + 314148.

It is an arithmetic number, because the mean of its divisors is an integer number (12562800).

Almost surely, 2^49622981 is an apocalyptic number.

It is an amenable number.

49622981 is a deficient number, since it is larger than the sum of its proper divisors (628219).

49622981 is an equidigital number, since it uses as much as digits as its factorization.

49622981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628218.

The product of its digits is 62208, while the sum is 41.

The square root of 49622981 is about 7044.3580970873. The cubic root of 49622981 is about 367.4748461041.

The spelling of 49622981 in words is "forty-nine million, six hundred twenty-two thousand, nine hundred eighty-one".