755949557 has 12 divisors (see below), whose sum is σ = 879799788. Its totient is φ = 646800000.

The previous prime is 755949511. The next prime is 755949559.

It is a happy number.

755949557 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 534118321 + 221831236 = 23111^2 + 14894^2 .

It is not a de Polignac number, because 755949557 - 2¹⁶ = 755884021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (755949559) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 181694 + ... + 185807.

It is an arithmetic number, because the mean of its divisors is an integer number (73316649).

Almost surely, 2^755949557 is an apocalyptic number.

It is an amenable number.

755949557 is a deficient number, since it is larger than the sum of its proper divisors (123850231).

755949557 is a wasteful number, since it uses less digits than its factorization.

755949557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367540 (or 367529 counting only the distinct ones).

The product of its digits is 9922500, while the sum is 56.

The square root of 755949557 is about 27494.5368573468. The cubic root of 755949557 is about 910.9564299140.

The spelling of 755949557 in words is "seven hundred fifty-five million, nine hundred forty-nine thousand, five hundred fifty-seven".