1620000533 has 8 divisors (see below), whose sum is σ = 1755186048. Its totient is φ = 1489247424.

The previous prime is 1620000527. The next prime is 1620000593. The reversal of 1620000533 is 3350000261.

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

It is a cyclic number.

It is not a de Polignac number, because 1620000533 - 2¹⁸ = 1619738389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1620000593) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1107341 + ... + 1108802.

It is an arithmetic number, because the mean of its divisors is an integer number (219398256).

Almost surely, 2^1620000533 is an apocalyptic number.

It is an amenable number.

1620000533 is a deficient number, since it is larger than the sum of its proper divisors (135185515).

1620000533 is a wasteful number, since it uses less digits than its factorization.

1620000533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2216203.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 1620000533 is about 40249.2302162414. The cubic root of 1620000533 is about 1174.4604211546.

Adding to 1620000533 its reverse (3350000261), we get a palindrome (4970000794).

The spelling of 1620000533 in words is "one billion, six hundred twenty million, five hundred thirty-three", and thus it is an aban number.