55470012 has 48 divisors (see below), whose sum is σ = 142037280. Its totient is φ = 16743168.

The previous prime is 55469989. The next prime is 55470017. The reversal of 55470012 is 21007455.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55470017) 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, 4914 + ... + 11622.

It is an arithmetic number, because the mean of its divisors is an integer number (2959110).

Almost surely, 2^55470012 is an apocalyptic number.

55470012 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55470012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71018640).

55470012 is an abundant number, since it is smaller than the sum of its proper divisors (86567268).

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

55470012 is a wasteful number, since it uses less digits than its factorization.

55470012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6782 (or 6780 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 55470012 is about 7447.8192781512. The cubic root of 55470012 is about 381.3754677255.

Adding to 55470012 its reverse (21007455), we get a palindrome (76477467).

It can be divided in two parts, 554700 and 12, that multiplied together give a square (6656400 = 2580²).

The spelling of 55470012 in words is "fifty-five million, four hundred seventy thousand, twelve".