55611902 has 4 divisors (see below), whose sum is σ = 83417856. Its totient is φ = 27805950.

The previous prime is 55611901. The next prime is 55611929. The reversal of 55611902 is 20911655.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20911655 = 5 ⋅4182331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55611901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13902974 + ... + 13902977.

It is an arithmetic number, because the mean of its divisors is an integer number (20854464).

Almost surely, 2^55611902 is an apocalyptic number.

55611902 is a deficient number, since it is larger than the sum of its proper divisors (27805954).

55611902 is a wasteful number, since it uses less digits than its factorization.

55611902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27805953.

The product of its (nonzero) digits is 2700, while the sum is 29.

The square root of 55611902 is about 7457.3388014760. The cubic root of 55611902 is about 381.7003717514.

The spelling of 55611902 in words is "fifty-five million, six hundred eleven thousand, nine hundred two".