152505243251 has 4 divisors (see below), whose sum is σ = 154218785400. Its totient is φ = 150791701104.

The previous prime is 152505243211. The next prime is 152505243257. The reversal of 152505243251 is 152342505251.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 152342505251 = 1483 ⋅102725897.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-152505243251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (152505243257) 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, 856770941 + ... + 856771118.

It is an arithmetic number, because the mean of its divisors is an integer number (38554696350).

Almost surely, 2^152505243251 is an apocalyptic number.

152505243251 is a deficient number, since it is larger than the sum of its proper divisors (1713542149).

152505243251 is an equidigital number, since it uses as much as digits as its factorization.

152505243251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1713542148.

The product of its (nonzero) digits is 60000, while the sum is 35.

The spelling of 152505243251 in words is "one hundred fifty-two billion, five hundred five million, two hundred forty-three thousand, two hundred fifty-one".