48777381 has 6 divisors (see below), whose sum is σ = 70456230. Its totient is φ = 32518248.

The previous prime is 48777373. The next prime is 48777431. The reversal of 48777381 is 18377784.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 43441281 + 5336100 = 6591^2 + 2310^2 .

It is not a de Polignac number, because 48777381 - 2³ = 48777373 is a prime.

It is a super-2 number, since 2×48777381² = 4758465794438322, 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 (48777361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2709846 + ... + 2709863.

It is an arithmetic number, because the mean of its divisors is an integer number (11742705).

Almost surely, 2^48777381 is an apocalyptic number.

It is an amenable number.

48777381 is a deficient number, since it is larger than the sum of its proper divisors (21678849).

48777381 is a wasteful number, since it uses less digits than its factorization.

48777381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5419715 (or 5419712 counting only the distinct ones).

The product of its digits is 263424, while the sum is 45.

The square root of 48777381 is about 6984.0805407727. The cubic root of 48777381 is about 365.3755588999.

The spelling of 48777381 in words is "forty-eight million, seven hundred seventy-seven thousand, three hundred eighty-one".