525293387401 has 4 divisors (see below), whose sum is σ = 530112592900. Its totient is φ = 520474181904.

The previous prime is 525293387389. The next prime is 525293387447. The reversal of 525293387401 is 104783392525.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 214113500176 + 311179887225 = 462724^2 + 557835^2 .

It is a cyclic number.

It is not a de Polignac number, because 525293387401 - 2⁷ = 525293387273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (525293387701) 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, 2409602586 + ... + 2409602803.

It is an arithmetic number, because the mean of its divisors is an integer number (132528148225).

Almost surely, 2^525293387401 is an apocalyptic number.

It is an amenable number.

525293387401 is a deficient number, since it is larger than the sum of its proper divisors (4819205499).

525293387401 is a wasteful number, since it uses less digits than its factorization.

525293387401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4819205498.

The product of its (nonzero) digits is 1814400, while the sum is 49.

The spelling of 525293387401 in words is "five hundred twenty-five billion, two hundred ninety-three million, three hundred eighty-seven thousand, four hundred one".