55736215 has 16 divisors (see below), whose sum is σ = 70588800. Its totient is φ = 42131232.

The previous prime is 55736209. The next prime is 55736221. The reversal of 55736215 is 51263755.

It is an interprime number because it is at equal distance from previous prime (55736209) and next prime (55736221).

It is a cyclic number.

It is not a de Polignac number, because 55736215 - 2⁹ = 55735703 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64456 + ... + 65314.

It is an arithmetic number, because the mean of its divisors is an integer number (4411800).

Almost surely, 2^55736215 is an apocalyptic number.

55736215 is a deficient number, since it is larger than the sum of its proper divisors (14852585).

55736215 is a wasteful number, since it uses less digits than its factorization.

55736215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1566.

The product of its digits is 31500, while the sum is 34.

The square root of 55736215 is about 7465.6690925864. The cubic root of 55736215 is about 381.9845735389.

The spelling of 55736215 in words is "fifty-five million, seven hundred thirty-six thousand, two hundred fifteen".