250145542440 has 128 divisors (see below), whose sum is σ = 862570944000. Its totient is φ = 64405281024.

The previous prime is 250145542369. The next prime is 250145542477. The reversal of 250145542440 is 44245541052.

250145542440 is a `hidden beast` number, since 2 + 50 + 14 + 554 + 2 + 4 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 250145542395 and 250145542404.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3962064 + ... + 4024703.

It is an arithmetic number, because the mean of its divisors is an integer number (6738835500).

Almost surely, 2^250145542440 is an apocalyptic number.

250145542440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

250145542440 is an abundant number, since it is smaller than the sum of its proper divisors (612425401560).

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

250145542440 is a wasteful number, since it uses less digits than its factorization.

250145542440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7986816 (or 7986806 counting only the distinct ones).

The product of its (nonzero) digits is 128000, while the sum is 36.

The spelling of 250145542440 in words is "two hundred fifty billion, one hundred forty-five million, five hundred forty-two thousand, four hundred forty".