252251220410513 has 4 divisors (see below), whose sum is σ = 253798773910128. Its totient is φ = 250703666910900.

The previous prime is 252251220410489. The next prime is 252251220410521. The reversal of 252251220410513 is 315014022152252.

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 a de Polignac number, because none of the positive numbers 2^k-252251220410513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252251220410543) 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, 773776749563 + ... + 773776749888.

It is an arithmetic number, because the mean of its divisors is an integer number (63449693477532).

Almost surely, 2^{252251220410513} is an apocalyptic number.

It is an amenable number.

252251220410513 is a deficient number, since it is larger than the sum of its proper divisors (1547553499615).

252251220410513 is a wasteful number, since it uses less digits than its factorization.

252251220410513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1547553499614.

The product of its (nonzero) digits is 48000, while the sum is 35.

Adding to 252251220410513 its reverse (315014022152252), we get a palindrome (567265242562765).

The spelling of 252251220410513 in words is "two hundred fifty-two trillion, two hundred fifty-one billion, two hundred twenty million, four hundred ten thousand, five hundred thirteen".