55431335 has 4 divisors (see below), whose sum is σ = 66517608. Its totient is φ = 44345064.

The previous prime is 55431331. The next prime is 55431347. The reversal of 55431335 is 53313455.

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 55431335 - 2² = 55431331 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55431298 and 55431307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55431331) 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, 5543129 + ... + 5543138.

It is an arithmetic number, because the mean of its divisors is an integer number (16629402).

Almost surely, 2^55431335 is an apocalyptic number.

55431335 is a deficient number, since it is larger than the sum of its proper divisors (11086273).

55431335 is a wasteful number, since it uses less digits than its factorization.

55431335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11086272.

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

The square root of 55431335 is about 7445.2222935249. Note that the first 4 decimals coincide. The cubic root of 55431335 is about 381.2868078769.

The spelling of 55431335 in words is "fifty-five million, four hundred thirty-one thousand, three hundred thirty-five".