245436635550 has 96 divisors (see below), whose sum is σ = 645488186112. Its totient is φ = 61504161280.

The previous prime is 245436635527. The next prime is 245436635557. The reversal of 245436635550 is 55536634542.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 245436635550.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245436635557) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1575469 + ... + 1724231.

It is an arithmetic number, because the mean of its divisors is an integer number (6723835272).

Almost surely, 2^245436635550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245436635550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (322744093056).

245436635550 is an abundant number, since it is smaller than the sum of its proper divisors (400051550562).

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

245436635550 is a wasteful number, since it uses less digits than its factorization.

245436635550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149442 (or 149437 counting only the distinct ones).

The product of its (nonzero) digits is 6480000, while the sum is 48.

The spelling of 245436635550 in words is "two hundred forty-five billion, four hundred thirty-six million, six hundred thirty-five thousand, five hundred fifty".