781552041 has 8 divisors (see below), whose sum is σ = 1043474880. Its totient is φ = 520331952.

The previous prime is 781552021. The next prime is 781552043. The reversal of 781552041 is 140255187.

781552041 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 781552041 - 2¹⁵ = 781519273 is a prime.

It is a super-2 number, since 2×781552041² = 1221647185582531362, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 781551993 and 781552011.

It is not an unprimeable number, because it can be changed into a prime (781552043) 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, 173086 + ... + 177543.

It is an arithmetic number, because the mean of its divisors is an integer number (130434360).

Almost surely, 2^781552041 is an apocalyptic number.

It is an amenable number.

781552041 is a deficient number, since it is larger than the sum of its proper divisors (261922839).

781552041 is a wasteful number, since it uses less digits than its factorization.

781552041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351375.

The product of its (nonzero) digits is 11200, while the sum is 33.

The square root of 781552041 is about 27956.2522702883. The cubic root of 781552041 is about 921.1265504137.

The spelling of 781552041 in words is "seven hundred eighty-one million, five hundred fifty-two thousand, forty-one".