50953581 has 36 divisors (see below), whose sum is σ = 87639552. Its totient is φ = 28428624.

The previous prime is 50953561. The next prime is 50953589. The reversal of 50953581 is 18535905.

It is a happy number.

It is not a de Polignac number, because 50953581 - 2⁷ = 50953453 is a prime.

It is a super-2 number, since 2×50953581² = 5192534833447122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50953589) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 17620 + ... + 20306.

It is an arithmetic number, because the mean of its divisors is an integer number (2434432).

Almost surely, 2^50953581 is an apocalyptic number.

It is an amenable number.

50953581 is a deficient number, since it is larger than the sum of its proper divisors (36685971).

50953581 is a wasteful number, since it uses less digits than its factorization.

50953581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2750 (or 2740 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The square root of 50953581 is about 7138.1777086312. The cubic root of 50953581 is about 370.7304319238.

The spelling of 50953581 in words is "fifty million, nine hundred fifty-three thousand, five hundred eighty-one".