55213702 has 8 divisors (see below), whose sum is σ = 82882800. Its totient is φ = 27586104.

The previous prime is 55213699. The next prime is 55213703. The reversal of 55213702 is 20731255.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55213703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6802 + ... + 12517.

It is an arithmetic number, because the mean of its divisors is an integer number (10360350).

Almost surely, 2^55213702 is an apocalyptic number.

55213702 is a deficient number, since it is larger than the sum of its proper divisors (27669098).

55213702 is a wasteful number, since it uses less digits than its factorization.

55213702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20750.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 55213702 is about 7430.5923047897. The cubic root of 55213702 is about 380.7871540976.

Adding to 55213702 its reverse (20731255), we get a palindrome (75944957).

The spelling of 55213702 in words is "fifty-five million, two hundred thirteen thousand, seven hundred two".