526400553457 has 4 divisors (see below), whose sum is σ = 526408380400. Its totient is φ = 526392726516.

The previous prime is 526400553451. The next prime is 526400553473. The reversal of 526400553457 is 754355004625.

It is a happy number.

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 526400553457 - 2¹⁵ = 526400520689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (526400553451) 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, 3811707 + ... + 3947392.

It is an arithmetic number, because the mean of its divisors is an integer number (131602095100).

Almost surely, 2^526400553457 is an apocalyptic number.

It is an amenable number.

526400553457 is a deficient number, since it is larger than the sum of its proper divisors (7826943).

526400553457 is an equidigital number, since it uses as much as digits as its factorization.

526400553457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7826942.

The product of its (nonzero) digits is 2520000, while the sum is 46.

The spelling of 526400553457 in words is "five hundred twenty-six billion, four hundred million, five hundred fifty-three thousand, four hundred fifty-seven".