755865049 has 9 divisors (see below), whose sum is σ = 798292917. Its totient is φ = 715587804.

The previous prime is 755865041. The next prime is 755865073. The reversal of 755865049 is 940568557.

The square root of 755865049 is 27493.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 755865049 - 2³ = 755865041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 755864993 and 755865011.

It is not an unprimeable number, because it can be changed into a prime (755865041) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 521644 + ... + 523090.

It is an arithmetic number, because the mean of its divisors is an integer number (88699213).

Almost surely, 2^755865049 is an apocalyptic number.

755865049 is the 27493-rd square number.

755865049 is the 13747-th centered octagonal number.

It is an amenable number.

755865049 is a deficient number, since it is larger than the sum of its proper divisors (42427868).

755865049 is an frugal number, since it uses more digits than its factorization.

755865049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2932 (or 1466 counting only the distinct ones).

The product of its (nonzero) digits is 1512000, while the sum is 49.

The cubic root of 755865049 is about 910.9224832156.

Multiplying 755865049 by its sum of digits (49), we get a square (37037387401 = 192451²).

The spelling of 755865049 in words is "seven hundred fifty-five million, eight hundred sixty-five thousand, forty-nine".