1620226053 has 24 divisors (see below), whose sum is σ = 2443828608. Its totient is φ = 1032448032.

The previous prime is 1620226039. The next prime is 1620226057. The reversal of 1620226053 is 3506220261.

1620226053 is a `hidden beast` number, since 16 + 20 + 22 + 605 + 3 = 666.

It is not a de Polignac number, because 1620226053 - 2⁴ = 1620226037 is a prime.

It is a super-3 number, since 3×1620226053³ (a number of 29 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1620226057) 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, 546451 + ... + 549407.

It is an arithmetic number, because the mean of its divisors is an integer number (101826192).

Almost surely, 2^1620226053 is an apocalyptic number.

It is an amenable number.

1620226053 is a deficient number, since it is larger than the sum of its proper divisors (823602555).

1620226053 is a wasteful number, since it uses less digits than its factorization.

1620226053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5633 (or 5630 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 1620226053 is about 40252.0316630105. The cubic root of 1620226053 is about 1174.5149174380.

The spelling of 1620226053 in words is "one billion, six hundred twenty million, two hundred twenty-six thousand, fifty-three".