2445505551 has 24 divisors (see below), whose sum is σ = 3631540224. Its totient is φ = 1585040400.

The previous prime is 2445505537. The next prime is 2445505571. The reversal of 2445505551 is 1555055442.

2445505551 is a `hidden beast` number, since 2 + 4 + 4 + 550 + 55 + 51 = 666.

It is not a de Polignac number, because 2445505551 - 2⁵ = 2445505519 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2445505501) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44730 + ... + 83016.

It is an arithmetic number, because the mean of its divisors is an integer number (151314176).

Almost surely, 2^2445505551 is an apocalyptic number.

2445505551 is a deficient number, since it is larger than the sum of its proper divisors (1186034673).

2445505551 is a wasteful number, since it uses less digits than its factorization.

2445505551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38491 (or 38488 counting only the distinct ones).

The product of its (nonzero) digits is 100000, while the sum is 36.

The square root of 2445505551 is about 49452.0530514154. The cubic root of 2445505551 is about 1347.2748962351.

The spelling of 2445505551 in words is "two billion, four hundred forty-five million, five hundred five thousand, five hundred fifty-one".