2482557781 has 8 divisors (see below), whose sum is σ = 2712362400. Its totient is φ = 2253439440.

The previous prime is 2482557761. The next prime is 2482557797. The reversal of 2482557781 is 1877552842.

It is a happy number.

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-2482557781 is a prime.

It is a super-2 number, since 2×2482557781² = 12326186272007287922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2482557761) 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, 163986 + ... + 178483.

It is an arithmetic number, because the mean of its divisors is an integer number (339045300).

Almost surely, 2^2482557781 is an apocalyptic number.

It is an amenable number.

2482557781 is a deficient number, since it is larger than the sum of its proper divisors (229804619).

2482557781 is a wasteful number, since it uses less digits than its factorization.

2482557781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343139.

The product of its digits is 1254400, while the sum is 49.

The square root of 2482557781 is about 49825.2725130531. The cubic root of 2482557781 is about 1354.0450747438.

It can be divided in two parts, 248255 and 7781, that added together give a square (256036 = 506²).

The spelling of 2482557781 in words is "two billion, four hundred eighty-two million, five hundred fifty-seven thousand, seven hundred eighty-one".