55402303 has 8 divisors (see below), whose sum is σ = 63994320. Its totient is φ = 47402880.

The previous prime is 55402279. The next prime is 55402349. The reversal of 55402303 is 30320455.

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

It is a cyclic number.

It is not a de Polignac number, because 55402303 - 2¹³ = 55394111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55408303) 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, 147948 + ... + 148321.

It is an arithmetic number, because the mean of its divisors is an integer number (7999290).

Almost surely, 2^55402303 is an apocalyptic number.

55402303 is a deficient number, since it is larger than the sum of its proper divisors (8592017).

55402303 is a wasteful number, since it uses less digits than its factorization.

55402303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296297.

The product of its (nonzero) digits is 1800, while the sum is 22.

The square root of 55402303 is about 7443.2723314413. The cubic root of 55402303 is about 381.2202303011.

Adding to 55402303 its reverse (30320455), we get a palindrome (85722758).

The spelling of 55402303 in words is "fifty-five million, four hundred two thousand, three hundred three".