55770004 has 12 divisors (see below), whose sum is σ = 99978228. Its totient is φ = 27204800.

The previous prime is 55769999. The next prime is 55770007. The reversal of 55770004 is 40007755.

It can be written as a sum of positive squares in 2 ways, for example, as 29268100 + 26501904 = 5410^2 + 5148^2 .

It is a super-2 number, since 2×55770004² = 6220586692320032, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55770007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169867 + ... + 170194.

It is an arithmetic number, because the mean of its divisors is an integer number (8331519).

Almost surely, 2^55770004 is an apocalyptic number.

It is an amenable number.

55770004 is a deficient number, since it is larger than the sum of its proper divisors (44208224).

55770004 is a wasteful number, since it uses less digits than its factorization.

55770004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340106 (or 340104 counting only the distinct ones).

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

The square root of 55770004 is about 7467.9317083112. The cubic root of 55770004 is about 382.0617481937.

Adding to 55770004 its reverse (40007755), we get a palindrome (95777759).

The spelling of 55770004 in words is "fifty-five million, seven hundred seventy thousand, four".