54533531 has 4 divisors (see below), whose sum is σ = 58728432. Its totient is φ = 50338632.

The previous prime is 54533491. The next prime is 54533533. The reversal of 54533531 is 13533545.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 54533531 - 2¹⁰ = 54532507 is a prime.

It is a super-2 number, since 2×54533531² = 5947812006655922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54533494 and 54533503.

It is not an unprimeable number, because it can be changed into a prime (54533533) 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, 2097431 + ... + 2097456.

It is an arithmetic number, because the mean of its divisors is an integer number (14682108).

Almost surely, 2^54533531 is an apocalyptic number.

54533531 is a deficient number, since it is larger than the sum of its proper divisors (4194901).

54533531 is a wasteful number, since it uses less digits than its factorization.

54533531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4194900.

The product of its digits is 13500, while the sum is 29.

The square root of 54533531 is about 7384.6821867972. The cubic root of 54533531 is about 379.2170652701.

The spelling of 54533531 in words is "fifty-four million, five hundred thirty-three thousand, five hundred thirty-one".