52501001473 has 4 divisors (see below), whose sum is σ = 53220193348. Its totient is φ = 51781809600.

The previous prime is 52501001461. The next prime is 52501001491. The reversal of 52501001473 is 37410010525.

It is a happy number.

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 39341929104 + 13159072369 = 198348^2 + 114713^2 .

It is a cyclic number.

It is not a de Polignac number, because 52501001473 - 2⁹ = 52501000961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52501002473) 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, 359595828 + ... + 359595973.

It is an arithmetic number, because the mean of its divisors is an integer number (13305048337).

Almost surely, 2^52501001473 is an apocalyptic number.

It is an amenable number.

52501001473 is a deficient number, since it is larger than the sum of its proper divisors (719191875).

52501001473 is an equidigital number, since it uses as much as digits as its factorization.

52501001473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719191874.

The product of its (nonzero) digits is 4200, while the sum is 28.

Adding to 52501001473 its reverse (37410010525), we get a palindrome (89911011998).

The spelling of 52501001473 in words is "fifty-two billion, five hundred one million, one thousand, four hundred seventy-three".