49590981 has 16 divisors (see below), whose sum is σ = 80147520. Its totient is φ = 30054960.

The previous prime is 49590971. The next prime is 49591001. The reversal of 49590981 is 18909594.

It is not a de Polignac number, because 49590981 - 2⁹ = 49590469 is a prime.

It is a super-2 number, since 2×49590981² = 4918530793084722, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49590901) 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, 83190 + ... + 83783.

It is an arithmetic number, because the mean of its divisors is an integer number (5009220).

Almost surely, 2^49590981 is an apocalyptic number.

It is an amenable number.

49590981 is a deficient number, since it is larger than the sum of its proper divisors (30556539).

49590981 is a wasteful number, since it uses less digits than its factorization.

49590981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166993 (or 166987 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 45.

The square root of 49590981 is about 7042.0864095806. The cubic root of 49590981 is about 367.3958388684.

The spelling of 49590981 in words is "forty-nine million, five hundred ninety thousand, nine hundred eighty-one".