55263939 has 8 divisors (see below), whose sum is σ = 73762320. Its totient is φ = 36804096.

The previous prime is 55263919. The next prime is 55263947. The reversal of 55263939 is 93936255.

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

It is not a de Polignac number, because 55263939 - 2¹³ = 55255747 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55263939.

It is not an unprimeable number, because it can be changed into a prime (55263919) 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, 6102 + ... + 12155.

It is an arithmetic number, because the mean of its divisors is an integer number (9220290).

Almost surely, 2^55263939 is an apocalyptic number.

55263939 is a deficient number, since it is larger than the sum of its proper divisors (18498381).

55263939 is a wasteful number, since it uses less digits than its factorization.

55263939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19269.

The product of its digits is 218700, while the sum is 42.

The square root of 55263939 is about 7433.9719531351. The cubic root of 55263939 is about 380.9026073560.

The spelling of 55263939 in words is "fifty-five million, two hundred sixty-three thousand, nine hundred thirty-nine".