55840370 has 16 divisors (see below), whose sum is σ = 103979160. Its totient is φ = 21565824.

The previous prime is 55840357. The next prime is 55840381. The reversal of 55840370 is 7304855.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 52809289 + 3031081 = 7267^2 + 1741^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95987 + ... + 96566.

Almost surely, 2^55840370 is an apocalyptic number.

55840370 is a deficient number, since it is larger than the sum of its proper divisors (48138790).

55840370 is a wasteful number, since it uses less digits than its factorization.

55840370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192589.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 55840370 is about 7472.6414339242. The cubic root of 55840370 is about 382.2223653488. Note that the first 3 decimals are identical.

The spelling of 55840370 in words is "fifty-five million, eight hundred forty thousand, three hundred seventy".