1552320450 has 72 divisors (see below), whose sum is σ = 4325066928. Its totient is φ = 413948880.

The previous prime is 1552320433. The next prime is 1552320457. The reversal of 1552320450 is 540232551.

It is a happy number.

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

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (1552320457) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 51732 + ... + 76031.

It is an arithmetic number, because the mean of its divisors is an integer number (60070374).

Almost surely, 2^1552320450 is an apocalyptic number.

1552320450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1552320450 is an abundant number, since it is smaller than the sum of its proper divisors (2772746478).

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

1552320450 is a wasteful number, since it uses less digits than its factorization.

1552320450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127790 (or 127773 counting only the distinct ones).

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

The square root of 1552320450 is about 39399.4980932499. The cubic root of 1552320450 is about 1157.8717541672.

The spelling of 1552320450 in words is "one billion, five hundred fifty-two million, three hundred twenty thousand, four hundred fifty".