48180781 has 16 divisors (see below), whose sum is σ = 55012608. Its totient is φ = 41804800.

The previous prime is 48180749. The next prime is 48180787. The reversal of 48180781 is 18708184.

It is a cyclic number.

It is not a de Polignac number, because 48180781 - 2⁵ = 48180749 is a prime.

It is a super-2 number, since 2×48180781² = 4642775315539922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 48180781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48180787) 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, 20061 + ... + 22333.

It is an arithmetic number, because the mean of its divisors is an integer number (3438288).

Almost surely, 2^48180781 is an apocalyptic number.

48180781 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

48180781 is a deficient number, since it is larger than the sum of its proper divisors (6831827).

48180781 is a wasteful number, since it uses less digits than its factorization.

48180781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2372.

The product of its (nonzero) digits is 14336, while the sum is 37.

The square root of 48180781 is about 6941.2377138375. The cubic root of 48180781 is about 363.8797981927.

The spelling of 48180781 in words is "forty-eight million, one hundred eighty thousand, seven hundred eighty-one".