2250245439981 has 160 divisors (see below), whose sum is σ = 4246343101440. Its totient is φ = 1153555603200.

The previous prime is 2250245439907. The next prime is 2250245439997. The reversal of 2250245439981 is 1899345420522.

2250245439981 is a `hidden beast` number, since 2 + 2 + 5 + 0 + 2 + 4 + 543 + 9 + 98 + 1 = 666.

It is not a de Polignac number, because 2250245439981 - 2¹³ = 2250245431789 is a prime.

It is a super-2 number, since 2×2250245439981² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2250245439881) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 303632166 + ... + 303639576.

It is an arithmetic number, because the mean of its divisors is an integer number (26539644384).

Almost surely, 2^{2250245439981} is an apocalyptic number.

2250245439981 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2250245439981 is a deficient number, since it is larger than the sum of its proper divisors (1996097661459).

2250245439981 is a wasteful number, since it uses less digits than its factorization.

2250245439981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8077 (or 8068 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 54.

The spelling of 2250245439981 in words is "two trillion, two hundred fifty billion, two hundred forty-five million, four hundred thirty-nine thousand, nine hundred eighty-one".