245544534 has 80 divisors (see below), whose sum is σ = 570200400. Its totient is φ = 78926400.

The previous prime is 245544529. The next prime is 245544557. The reversal of 245544534 is 435445542.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 703392 + ... + 703740.

It is an arithmetic number, because the mean of its divisors is an integer number (7127505).

Almost surely, 2^245544534 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245544534, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (285100200).

245544534 is an abundant number, since it is smaller than the sum of its proper divisors (324655866).

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

245544534 is a wasteful number, since it uses less digits than its factorization.

245544534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507 (or 498 counting only the distinct ones).

The product of its digits is 192000, while the sum is 36.

The square root of 245544534 is about 15669.8606885958. The cubic root of 245544534 is about 626.1957133193.

The spelling of 245544534 in words is "two hundred forty-five million, five hundred forty-four thousand, five hundred thirty-four".