55263963 has 16 divisors (see below), whose sum is σ = 78529536. Its totient is φ = 34488960.

The previous prime is 55263959. The next prime is 55263983. The reversal of 55263963 is 36936255.

It is not a de Polignac number, because 55263963 - 2² = 55263959 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55263983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5278 + ... + 11763.

It is an arithmetic number, because the mean of its divisors is an integer number (4908096).

Almost surely, 2^55263963 is an apocalyptic number.

55263963 is a deficient number, since it is larger than the sum of its proper divisors (23265573).

55263963 is a wasteful number, since it uses less digits than its factorization.

55263963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17114.

The product of its digits is 145800, while the sum is 39.

The square root of 55263963 is about 7433.9735673461. The cubic root of 55263963 is about 380.9026624954.

The spelling of 55263963 in words is "fifty-five million, two hundred sixty-three thousand, nine hundred sixty-three".