55135502 has 4 divisors (see below), whose sum is σ = 82703256. Its totient is φ = 27567750.

The previous prime is 55135499. The next prime is 55135517. The reversal of 55135502 is 20553155.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13783874 + ... + 13783877.

It is an arithmetic number, because the mean of its divisors is an integer number (20675814).

Almost surely, 2^55135502 is an apocalyptic number.

55135502 is a deficient number, since it is larger than the sum of its proper divisors (27567754).

55135502 is a wasteful number, since it uses less digits than its factorization.

55135502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27567753.

The product of its (nonzero) digits is 3750, while the sum is 26.

The square root of 55135502 is about 7425.3284102456. The cubic root of 55135502 is about 380.6072976273.

Adding to 55135502 its reverse (20553155), we get a palindrome (75688657).

The spelling of 55135502 in words is "fifty-five million, one hundred thirty-five thousand, five hundred two".