55136072 has 8 divisors (see below), whose sum is σ = 103380150. Its totient is φ = 27568032.

The previous prime is 55136071. The next prime is 55136077. The reversal of 55136072 is 27063155.

It can be written as a sum of positive squares in only one way, i.e., 48916036 + 6220036 = 6994^2 + 2494^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (55136071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3445997 + ... + 3446012.

Almost surely, 2^55136072 is an apocalyptic number.

It is an amenable number.

55136072 is a deficient number, since it is larger than the sum of its proper divisors (48244078).

55136072 is a wasteful number, since it uses less digits than its factorization.

55136072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6892015 (or 6892011 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 55136072 is about 7425.3667922871. The cubic root of 55136072 is about 380.6086092167.

The spelling of 55136072 in words is "fifty-five million, one hundred thirty-six thousand, seventy-two".