55070740 has 48 divisors (see below), whose sum is σ = 127048320. Its totient is φ = 19958400.

The previous prime is 55070737. The next prime is 55070747. The reversal of 55070740 is 4707055.

It is a junction number, because it is equal to n+sod(n) for n = 55070699 and 55070708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55070747) 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, 5590 + ... + 11890.

It is an arithmetic number, because the mean of its divisors is an integer number (2646840).

Almost surely, 2^55070740 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 55070740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63524160).

55070740 is an abundant number, since it is smaller than the sum of its proper divisors (71977580).

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

55070740 is a wasteful number, since it uses less digits than its factorization.

55070740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6352 (or 6350 counting only the distinct ones).

The product of its (nonzero) digits is 4900, while the sum is 28.

The square root of 55070740 is about 7420.9662443647. The cubic root of 55070740 is about 380.4582191688.

Adding to 55070740 its reverse (4707055), we get a palindrome (59777795).

The spelling of 55070740 in words is "fifty-five million, seventy thousand, seven hundred forty".