252552557401 has 4 divisors (see below), whose sum is σ = 252853574400. Its totient is φ = 252251540404.

The previous prime is 252552557381. The next prime is 252552557437. The reversal of 252552557401 is 104755255252.

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 252552557401 - 2⁷ = 252552557273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252552552401) 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, 150507241 + ... + 150508918.

It is an arithmetic number, because the mean of its divisors is an integer number (63213393600).

Almost surely, 2^252552557401 is an apocalyptic number.

It is an amenable number.

252552557401 is a deficient number, since it is larger than the sum of its proper divisors (301016999).

252552557401 is an equidigital number, since it uses as much as digits as its factorization.

252552557401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301016998.

The product of its (nonzero) digits is 700000, while the sum is 43.

The spelling of 252552557401 in words is "two hundred fifty-two billion, five hundred fifty-two million, five hundred fifty-seven thousand, four hundred one".