526415401 has 2 divisors, whose sum is σ = 526415402. Its totient is φ = 526415400.

The previous prime is 526415399. The next prime is 526415419. The reversal of 526415401 is 104514625.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 446223376 + 80192025 = 21124^2 + 8955^2 .

It is a cyclic number.

It is not a de Polignac number, because 526415401 - 2¹ = 526415399 is a prime.

It is a super-2 number, since 2×526415401² = 554226348819981602, which contains 22 as substring.

Together with 526415399, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 526415401.

It is not a weakly prime, because it can be changed into another prime (526415431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 263207700 + 263207701.

It is an arithmetic number, because the mean of its divisors is an integer number (263207701).

Almost surely, 2^526415401 is an apocalyptic number.

It is an amenable number.

526415401 is a deficient number, since it is larger than the sum of its proper divisors (1).

526415401 is an equidigital number, since it uses as much as digits as its factorization.

526415401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 526415401 is about 22943.7442672289. The cubic root of 526415401 is about 807.4386402653.

The spelling of 526415401 in words is "five hundred twenty-six million, four hundred fifteen thousand, four hundred one".