55015430 has 8 divisors (see below), whose sum is σ = 99027792. Its totient is φ = 22006168.

The previous prime is 55015423. The next prime is 55015453. The reversal of 55015430 is 3451055.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 55015396 and 55015405.

It is a congruent number.

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, 2750762 + ... + 2750781.

It is an arithmetic number, because the mean of its divisors is an integer number (12378474).

Almost surely, 2^55015430 is an apocalyptic number.

55015430 is a deficient number, since it is larger than the sum of its proper divisors (44012362).

55015430 is a wasteful number, since it uses less digits than its factorization.

55015430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5501550.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 55015430 is about 7417.2387045315. The cubic root of 55015430 is about 380.3308061185.

Adding to 55015430 its reverse (3451055), we get a palindrome (58466485).

The spelling of 55015430 in words is "fifty-five million, fifteen thousand, four hundred thirty".