201552250500421 has 8 divisors (see below), whose sum is σ = 208831463569944. Its totient is φ = 194369450849280.

The previous prime is 201552250500397. The next prime is 201552250500449. The reversal of 201552250500421 is 124005052255102.

It can be written as a sum of positive squares in 4 ways, for example, as 6406158419521 + 195146092080900 = 2531039^2 + 13969470^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201552250500421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201552250503421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24103350340 + ... + 24103358701.

It is an arithmetic number, because the mean of its divisors is an integer number (26103932946243).

Almost surely, 2^{201552250500421} is an apocalyptic number.

It is an amenable number.

201552250500421 is a deficient number, since it is larger than the sum of its proper divisors (7279213069523).

201552250500421 is a wasteful number, since it uses less digits than its factorization.

201552250500421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48206709191.

The product of its (nonzero) digits is 40000, while the sum is 34.

The spelling of 201552250500421 in words is "two hundred one trillion, five hundred fifty-two billion, two hundred fifty million, five hundred thousand, four hundred twenty-one".