245111550 has 48 divisors (see below), whose sum is σ = 608828592. Its totient is φ = 65260800.

The previous prime is 245111549. The next prime is 245111557. The reversal of 245111550 is 55111542.

It is a self number, because there is not a number n which added to its sum of digits gives 245111550.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245111557) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 184890 + ... + 186210.

It is an arithmetic number, because the mean of its divisors is an integer number (12683929).

Almost surely, 2^245111550 is an apocalyptic number.

245111550 is an abundant number, since it is smaller than the sum of its proper divisors (363717042).

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

245111550 is a wasteful number, since it uses less digits than its factorization.

245111550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2573 (or 2568 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 24.

The square root of 245111550 is about 15656.0387710302. The cubic root of 245111550 is about 625.8274267672.

It can be divided in two parts, 2451 and 11550, that multiplied together give a triangular number (28309050 = T₇₅₂₄).

The spelling of 245111550 in words is "two hundred forty-five million, one hundred eleven thousand, five hundred fifty".