55072372 has 12 divisors (see below), whose sum is σ = 96550020. Its totient is φ = 27486656.

The previous prime is 55072361. The next prime is 55072417. The reversal of 55072372 is 27327055.

It can be written as a sum of positive squares in 2 ways, for example, as 10929636 + 44142736 = 3306^2 + 6644^2 .

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, 9823 + ... + 14374.

It is an arithmetic number, because the mean of its divisors is an integer number (8045835).

Almost surely, 2^55072372 is an apocalyptic number.

It is an amenable number.

55072372 is a deficient number, since it is larger than the sum of its proper divisors (41477648).

55072372 is a wasteful number, since it uses less digits than its factorization.

55072372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24770 (or 24768 counting only the distinct ones).

The product of its (nonzero) digits is 14700, while the sum is 31.

The square root of 55072372 is about 7421.0762022769. The cubic root of 55072372 is about 380.4619773755.

The spelling of 55072372 in words is "fifty-five million, seventy-two thousand, three hundred seventy-two".