245531500040 has 32 divisors (see below), whose sum is σ = 552672414360. Its totient is φ = 98172326400.

The previous prime is 245531500033. The next prime is 245531500061. The reversal of 245531500040 is 40005135542.

It can be written as a sum of positive squares in 4 ways, for example, as 198864267364 + 46667232676 = 445942^2 + 216026^2 .

It is a junction number, because it is equal to n+sod(n) for n = 245531499976 and 245531500012.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1159691 + ... + 1354970.

Almost surely, 2^245531500040 is an apocalyptic number.

245531500040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245531500040 is an abundant number, since it is smaller than the sum of its proper divisors (307140914320).

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

245531500040 is a wasteful number, since it uses less digits than its factorization.

245531500040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2517113 (or 2517109 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 29.

Adding to 245531500040 its reverse (40005135542), we get a palindrome (285536635582).

The spelling of 245531500040 in words is "two hundred forty-five billion, five hundred thirty-one million, five hundred thousand, forty".