2451320550 has 144 divisors (see below), whose sum is σ = 7857778320. Its totient is φ = 560286720.

The previous prime is 2451320539. The next prime is 2451320551. The reversal of 2451320550 is 550231542.

It is a happy number.

2451320550 is a `hidden beast` number, since 2 + 451 + 3 + 205 + 5 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2451320551) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 47622 + ... + 84678.

It is an arithmetic number, because the mean of its divisors is an integer number (54567905).

Almost surely, 2^2451320550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2451320550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3928889160).

2451320550 is an abundant number, since it is smaller than the sum of its proper divisors (5406457770).

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

2451320550 is a wasteful number, since it uses less digits than its factorization.

2451320550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37092 (or 37074 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 2451320550 is about 49510.8124554627. The cubic root of 2451320550 is about 1348.3419149725.

The spelling of 2451320550 in words is "two billion, four hundred fifty-one million, three hundred twenty thousand, five hundred fifty".