252790505378 has 8 divisors (see below), whose sum is σ = 380310939372. Its totient is φ = 126020192256.

The previous prime is 252790505371. The next prime is 252790505413. The reversal of 252790505378 is 873505097252.

It can be written as a sum of positive squares in 2 ways, for example, as 252784711729 + 5793649 = 502777^2 + 2407^2 .

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

It is not an unprimeable number, because it can be changed into a prime (252790505371) 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, 187529375 + ... + 187530722.

Almost surely, 2^252790505378 is an apocalyptic number.

252790505378 is a deficient number, since it is larger than the sum of its proper divisors (127520433994).

252790505378 is a wasteful number, since it uses less digits than its factorization.

252790505378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375060436.

The product of its (nonzero) digits is 5292000, while the sum is 53.

The spelling of 252790505378 in words is "two hundred fifty-two billion, seven hundred ninety million, five hundred five thousand, three hundred seventy-eight".