55520434 has 8 divisors (see below), whose sum is σ = 83312640. Its totient is φ = 27749556.

The previous prime is 55520401. The next prime is 55520441. The reversal of 55520434 is 43402555.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5967 + ... + 12109.

It is an arithmetic number, because the mean of its divisors is an integer number (10414080).

Almost surely, 2^55520434 is an apocalyptic number.

55520434 is a deficient number, since it is larger than the sum of its proper divisors (27792206).

55520434 is a wasteful number, since it uses less digits than its factorization.

55520434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10664.

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 55520434 is about 7451.2035269478. The cubic root of 55520434 is about 381.4909889444.

Adding to 55520434 its reverse (43402555), we get a palindrome (98922989).

The spelling of 55520434 in words is "fifty-five million, five hundred twenty thousand, four hundred thirty-four".