53431545 has 8 divisors (see below), whose sum is σ = 85490496. Its totient is φ = 28496816.

The previous prime is 53431531. The next prime is 53431597. The reversal of 53431545 is 54513435.

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 53431545 - 2⁴ = 53431529 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1781037 + ... + 1781066.

It is an arithmetic number, because the mean of its divisors is an integer number (10686312).

Almost surely, 2^53431545 is an apocalyptic number.

It is an amenable number.

53431545 is a deficient number, since it is larger than the sum of its proper divisors (32058951).

53431545 is a wasteful number, since it uses less digits than its factorization.

53431545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3562111.

The product of its digits is 18000, while the sum is 30.

The square root of 53431545 is about 7309.6884338527. The cubic root of 53431545 is about 376.6453216644.

The spelling of 53431545 in words is "fifty-three million, four hundred thirty-one thousand, five hundred forty-five".