55274736 has 120 divisors (see below), whose sum is σ = 162545152. Its totient is φ = 16156800.

The previous prime is 55274731. The next prime is 55274749. The reversal of 55274736 is 63747255.

55274736 = T₄₄₀ + T₄₄₁ + ... + T₇₄₆.

It is a junction number, because it is equal to n+sod(n) for n = 55274694 and 55274703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55274731) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 179895 + ... + 180201.

Almost surely, 2^55274736 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55274736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81272576).

55274736 is an abundant number, since it is smaller than the sum of its proper divisors (107270416).

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

55274736 is a wasteful number, since it uses less digits than its factorization.

55274736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371 (or 354 counting only the distinct ones).

The product of its digits is 176400, while the sum is 39.

The square root of 55274736 is about 7434.6981108852. The cubic root of 55274736 is about 380.9274115817.

The spelling of 55274736 in words is "fifty-five million, two hundred seventy-four thousand, seven hundred thirty-six".