55611770 has 16 divisors (see below), whose sum is σ = 100189440. Its totient is φ = 22225104.

The previous prime is 55611767. The next prime is 55611779. The reversal of 55611770 is 7711655.

It is not an unprimeable number, because it can be changed into a prime (55611779) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16271 + ... + 19389.

It is an arithmetic number, because the mean of its divisors is an integer number (6261840).

Almost surely, 2^55611770 is an apocalyptic number.

55611770 is a deficient number, since it is larger than the sum of its proper divisors (44577670).

55611770 is a wasteful number, since it uses less digits than its factorization.

55611770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4909.

The product of its (nonzero) digits is 7350, while the sum is 32.

The square root of 55611770 is about 7457.3299511286. The cubic root of 55611770 is about 381.7000697508.

The spelling of 55611770 in words is "fifty-five million, six hundred eleven thousand, seven hundred seventy".