2153533537 has 4 divisors (see below), whose sum is σ = 2154043440. Its totient is φ = 2153023636.

The previous prime is 2153533457. The next prime is 2153533541. The reversal of 2153533537 is 7353353512.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2153533537 - 2⁷ = 2153533409 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2153533496 and 2153533505.

It is not an unprimeable number, because it can be changed into a prime (2153533037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248563 + ... + 257080.

It is an arithmetic number, because the mean of its divisors is an integer number (538510860).

Almost surely, 2^2153533537 is an apocalyptic number.

It is an amenable number.

2153533537 is a deficient number, since it is larger than the sum of its proper divisors (509903).

2153533537 is an equidigital number, since it uses as much as digits as its factorization.

2153533537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509902.

The product of its digits is 141750, while the sum is 37.

The square root of 2153533537 is about 46406.1799440549. The cubic root of 2153533537 is about 1291.3695642186.

The spelling of 2153533537 in words is "two billion, one hundred fifty-three million, five hundred thirty-three thousand, five hundred thirty-seven".