250074978450 has 192 divisors, whose sum is σ = 747512727552. Its totient is φ = 54577177600.

The previous prime is 250074978389. The next prime is 250074978457. The reversal of 250074978450 is 54879470052.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a junction number, because it is equal to n+sod(n) for n = 250074978393 and 250074978402.

It is not an unprimeable number, because it can be changed into a prime (250074978457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 451339 + ... + 838961.

It is an arithmetic number, because the mean of its divisors is an integer number (3893295456).

Almost surely, 2^250074978450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 250074978450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (373756363776).

250074978450 is an abundant number, since it is smaller than the sum of its proper divisors (497437749102).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

250074978450 is a wasteful number, since it uses less digits than its factorization.

250074978450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387689 (or 387684 counting only the distinct ones).

The product of its (nonzero) digits is 2822400, while the sum is 51.

The spelling of 250074978450 in words is "two hundred fifty billion, seventy-four million, nine hundred seventy-eight thousand, four hundred fifty".