55431320435 has 8 divisors (see below), whose sum is σ = 66520621440. Its totient is φ = 44343031744.

The previous prime is 55431320401. The next prime is 55431320471. The reversal of 55431320435 is 53402313455.

It is a happy number.

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 55431320435 - 2¹⁶ = 55431254899 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55431320395 and 55431320404.

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, 126890 + ... + 356319.

It is an arithmetic number, because the mean of its divisors is an integer number (8315077680).

Almost surely, 2^55431320435 is an apocalyptic number.

55431320435 is a deficient number, since it is larger than the sum of its proper divisors (11089301005).

55431320435 is a wasteful number, since it uses less digits than its factorization.

55431320435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506157.

The product of its (nonzero) digits is 108000, while the sum is 35.

The spelling of 55431320435 in words is "fifty-five billion, four hundred thirty-one million, three hundred twenty thousand, four hundred thirty-five".