525446881887381 has 4 divisors (see below), whose sum is σ = 700595842516512. Its totient is φ = 350297921258252.

The previous prime is 525446881887283. The next prime is 525446881887397. The reversal of 525446881887381 is 183788188644525.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 525446881887381 - 2¹⁰ = 525446881886357 is a prime.

It is a super-2 number, since 2×525446881887381² (a number of 30 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 525446881887297 and 525446881887306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525446881687381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87574480314561 + ... + 87574480314566.

It is an arithmetic number, because the mean of its divisors is an integer number (175148960629128).

Almost surely, 2^{525446881887381} is an apocalyptic number.

It is an amenable number.

525446881887381 is a deficient number, since it is larger than the sum of its proper divisors (175148960629131).

525446881887381 is a wasteful number, since it uses less digits than its factorization.

525446881887381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175148960629130.

The product of its digits is 3303014400, while the sum is 78.

The spelling of 525446881887381 in words is "five hundred twenty-five trillion, four hundred forty-six billion, eight hundred eighty-one million, eight hundred eighty-seven thousand, three hundred eighty-one".