1553450506 has 8 divisors (see below), whose sum is σ = 2336325120. Its totient is φ = 774675468.

The previous prime is 1553450491. The next prime is 1553450537. The reversal of 1553450506 is 6050543551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1023946 + ... + 1025461.

It is an arithmetic number, because the mean of its divisors is an integer number (292040640).

Almost surely, 2^1553450506 is an apocalyptic number.

1553450506 is a deficient number, since it is larger than the sum of its proper divisors (782874614).

1553450506 is a wasteful number, since it uses less digits than its factorization.

1553450506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2049788.

The product of its (nonzero) digits is 45000, while the sum is 34.

The square root of 1553450506 is about 39413.8364790843. The cubic root of 1553450506 is about 1158.1526546177.

The spelling of 1553450506 in words is "one billion, five hundred fifty-three million, four hundred fifty thousand, five hundred six".