53446531 has 4 divisors (see below), whose sum is σ = 53635672. Its totient is φ = 53257392.

The previous prime is 53446451. The next prime is 53446541. The reversal of 53446531 is 13564435.

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 53446531 - 2⁷ = 53446403 is a prime.

It is a super-2 number, since 2×53446531² = 5713063351867922, 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 = 53446493 and 53446502.

It is not an unprimeable number, because it can be changed into a prime (53446541) 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, 94146 + ... + 94711.

It is an arithmetic number, because the mean of its divisors is an integer number (13408918).

Almost surely, 2^53446531 is an apocalyptic number.

53446531 is a deficient number, since it is larger than the sum of its proper divisors (189141).

53446531 is a wasteful number, since it uses less digits than its factorization.

53446531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189140.

The product of its digits is 21600, while the sum is 31.

The square root of 53446531 is about 7310.7134398771. The cubic root of 53446531 is about 376.6805310722.

The spelling of 53446531 in words is "fifty-three million, four hundred forty-six thousand, five hundred thirty-one".