55102642 has 32 divisors (see below), whose sum is σ = 97029504. Its totient is φ = 22982400.

The previous prime is 55102601. The next prime is 55102681. The reversal of 55102642 is 24620155.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96217 + ... + 96787.

It is an arithmetic number, because the mean of its divisors is an integer number (3032172).

Almost surely, 2^55102642 is an apocalyptic number.

55102642 is a deficient number, since it is larger than the sum of its proper divisors (41926862).

55102642 is a wasteful number, since it uses less digits than its factorization.

55102642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 55102642 is about 7423.1153837186. The cubic root of 55102642 is about 380.5316703649.

Adding to 55102642 its reverse (24620155), we get a palindrome (79722797).

The spelling of 55102642 in words is "fifty-five million, one hundred two thousand, six hundred forty-two".