252478245550 has 12 divisors (see below), whose sum is σ = 469609536816. Its totient is φ = 100991298200.

The previous prime is 252478245473. The next prime is 252478245557. The reversal of 252478245550 is 55542874252.

It is a junction number, because it is equal to n+sod(n) for n = 252478245494 and 252478245503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252478245557) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2524782406 + ... + 2524782505.

It is an arithmetic number, because the mean of its divisors is an integer number (39134128068).

Almost surely, 2^252478245550 is an apocalyptic number.

252478245550 is a deficient number, since it is larger than the sum of its proper divisors (217131291266).

252478245550 is a wasteful number, since it uses less digits than its factorization.

252478245550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5049564923 (or 5049564918 counting only the distinct ones).

The product of its (nonzero) digits is 4480000, while the sum is 49.

The spelling of 252478245550 in words is "two hundred fifty-two billion, four hundred seventy-eight million, two hundred forty-five thousand, five hundred fifty".