525251477 has 2 divisors, whose sum is σ = 525251478. Its totient is φ = 525251476.

The previous prime is 525251423. The next prime is 525251491. The reversal of 525251477 is 774152525.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 461347441 + 63904036 = 21479^2 + 7994^2 .

It is a cyclic number.

It is not a de Polignac number, because 525251477 - 2²⁶ = 458142613 is a prime.

It is a super-2 number, since 2×525251477² = 551778228181363058, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 525251477.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (525251417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262625738 + 262625739.

It is an arithmetic number, because the mean of its divisors is an integer number (262625739).

Almost surely, 2^525251477 is an apocalyptic number.

It is an amenable number.

525251477 is a deficient number, since it is larger than the sum of its proper divisors (1).

525251477 is an equidigital number, since it uses as much as digits as its factorization.

525251477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 98000, while the sum is 38.

The square root of 525251477 is about 22918.3654958202. The cubic root of 525251477 is about 806.8431088628.

The spelling of 525251477 in words is "five hundred twenty-five million, two hundred fifty-one thousand, four hundred seventy-seven".