48905981 has 8 divisors (see below), whose sum is σ = 53718720. Its totient is φ = 44317152.

The previous prime is 48905963. The next prime is 48906023. The reversal of 48905981 is 18950984.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-48905981 is a prime.

It is a super-2 number, since 2×48905981² = 4783589955144722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48905951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55520 + ... + 56393.

It is an arithmetic number, because the mean of its divisors is an integer number (6714840).

Almost surely, 2^48905981 is an apocalyptic number.

It is an amenable number.

48905981 is a deficient number, since it is larger than the sum of its proper divisors (4812739).

48905981 is a wasteful number, since it uses less digits than its factorization.

48905981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111955.

The product of its (nonzero) digits is 103680, while the sum is 44.

The square root of 48905981 is about 6993.2811326301. The cubic root of 48905981 is about 365.6963774350.

The spelling of 48905981 in words is "forty-eight million, nine hundred five thousand, nine hundred eighty-one".