49258781 has 16 divisors (see below), whose sum is σ = 58829568. Its totient is φ = 40651200.

The previous prime is 49258739. The next prime is 49258787. The reversal of 49258781 is 18785294.

It is a cyclic number.

It is not a de Polignac number, because 49258781 - 2²² = 45064477 is a prime.

It is a super-3 number, since 3×49258781³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an alternating number because its digits alternate between even and odd.

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 (49258787) 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, 5900 + ... + 11546.

It is an arithmetic number, because the mean of its divisors is an integer number (3676848).

Almost surely, 2^49258781 is an apocalyptic number.

It is an amenable number.

49258781 is a deficient number, since it is larger than the sum of its proper divisors (9570787).

49258781 is a wasteful number, since it uses less digits than its factorization.

49258781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5732.

The product of its digits is 161280, while the sum is 44.

The square root of 49258781 is about 7018.4600162714. The cubic root of 49258781 is about 366.5736299305.

The spelling of 49258781 in words is "forty-nine million, two hundred fifty-eight thousand, seven hundred eighty-one".