55072434 has 8 divisors (see below), whose sum is σ = 110144880. Its totient is φ = 18357476.

The previous prime is 55072427. The next prime is 55072453. The reversal of 55072434 is 43427055.

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

55072434 is an admirable 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, 4589364 + ... + 4589375.

It is an arithmetic number, because the mean of its divisors is an integer number (13768110).

Almost surely, 2^55072434 is an apocalyptic number.

55072434 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55072434 is a wasteful number, since it uses less digits than its factorization.

55072434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9178744.

The product of its (nonzero) digits is 16800, while the sum is 30.

The square root of 55072434 is about 7421.0803795674. The cubic root of 55072434 is about 380.4621201491.

Adding to 55072434 its reverse (43427055), we get a palindrome (98499489).

The spelling of 55072434 in words is "fifty-five million, seventy-two thousand, four hundred thirty-four".