55274740 has 48 divisors (see below), whose sum is σ = 119246400. Its totient is φ = 21514752.

The previous prime is 55274731. The next prime is 55274749. The reversal of 55274740 is 4747255.

It is an interprime number because it is at equal distance from previous prime (55274731) and next prime (55274749).

It is a junction number, because it is equal to n+sod(n) for n = 55274696 and 55274705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55274749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163852 + ... + 164188.

It is an arithmetic number, because the mean of its divisors is an integer number (2484300).

Almost surely, 2^55274740 is an apocalyptic number.

It is an amenable number.

55274740 is an abundant number, since it is smaller than the sum of its proper divisors (63971660).

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

55274740 is a wasteful number, since it uses less digits than its factorization.

55274740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544 (or 542 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 34.

The square root of 55274740 is about 7434.6983798941. The cubic root of 55274740 is about 380.9274207704.

The spelling of 55274740 in words is "fifty-five million, two hundred seventy-four thousand, seven hundred forty".