525377 has 2 divisors, whose sum is σ = 525378. Its totient is φ = 525376.

The previous prime is 525373. The next prime is 525379. The reversal of 525377 is 773525.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 295936 + 229441 = 544^2 + 479^2 .

It is a cyclic number.

It is not a de Polignac number, because 525377 - 2² = 525373 is a prime.

Together with 525379, it forms a pair of twin primes.

It is a Chen prime.

It is a d-powerful number, because it can be written as 5 + 2¹⁹ + 3⁶ + 5 + 7 + 7³ .

It is not a weakly prime, because it can be changed into another prime (525373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262688 + 262689.

It is an arithmetic number, because the mean of its divisors is an integer number (262689).

2⁵²⁵³⁷⁷ is an apocalyptic number.

It is an amenable number.

525377 is a deficient number, since it is larger than the sum of its proper divisors (1).

525377 is an equidigital number, since it uses as much as digits as its factorization.

525377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7350, while the sum is 29.

The square root of 525377 is about 724.8289453381. The cubic root of 525377 is about 80.6907376047.

The spelling of 525377 in words is "five hundred twenty-five thousand, three hundred seventy-seven".