55431535 has 8 divisors (see below), whose sum is σ = 67360320. Its totient is φ = 43783584.

The previous prime is 55431479. The next prime is 55431539. The reversal of 55431535 is 53513455.

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 55431535 - 2¹³ = 55423343 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55431497 and 55431506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55431539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69772 + ... + 70561.

It is an arithmetic number, because the mean of its divisors is an integer number (8420040).

Almost surely, 2^55431535 is an apocalyptic number.

55431535 is a deficient number, since it is larger than the sum of its proper divisors (11928785).

55431535 is a wasteful number, since it uses less digits than its factorization.

55431535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140417.

The product of its digits is 22500, while the sum is 31.

The square root of 55431535 is about 7445.2357249452. The cubic root of 55431535 is about 381.2872664458.

The spelling of 55431535 in words is "fifty-five million, four hundred thirty-one thousand, five hundred thirty-five".