525749361 has 32 divisors (see below), whose sum is σ = 784650240. Its totient is φ = 311180544.

The previous prime is 525749353. The next prime is 525749363. The reversal of 525749361 is 163947525.

It is not a de Polignac number, because 525749361 - 2³ = 525749353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (525749363) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 253816 + ... + 255878.

It is an arithmetic number, because the mean of its divisors is an integer number (24520320).

Almost surely, 2^525749361 is an apocalyptic number.

525749361 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

525749361 is a deficient number, since it is larger than the sum of its proper divisors (258900879).

525749361 is a wasteful number, since it uses less digits than its factorization.

525749361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2365.

The product of its digits is 226800, while the sum is 42.

The square root of 525749361 is about 22929.2250414182. The cubic root of 525749361 is about 807.0979629222.

The spelling of 525749361 in words is "five hundred twenty-five million, seven hundred forty-nine thousand, three hundred sixty-one".