49619901 has 16 divisors (see below), whose sum is σ = 70174080. Its totient is φ = 31120320.

The previous prime is 49619897. The next prime is 49619909. The reversal of 49619901 is 10991694.

It is not a de Polignac number, because 49619901 - 2² = 49619897 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49619901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49619909) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1686 + ... + 10103.

It is an arithmetic number, because the mean of its divisors is an integer number (4385880).

Almost surely, 2^49619901 is an apocalyptic number.

It is an amenable number.

49619901 is a deficient number, since it is larger than the sum of its proper divisors (20554179).

49619901 is a wasteful number, since it uses less digits than its factorization.

49619901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11876.

The product of its (nonzero) digits is 17496, while the sum is 39.

The square root of 49619901 is about 7044.1394790279. The cubic root of 49619901 is about 367.4672431352.

The spelling of 49619901 in words is "forty-nine million, six hundred nineteen thousand, nine hundred one".