55615069 has 8 divisors (see below), whose sum is σ = 58073760. Its totient is φ = 53192496.

The previous prime is 55615067. The next prime is 55615093. The reversal of 55615069 is 96051655.

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

It is not a de Polignac number, because 55615069 - 2¹ = 55615067 is a prime.

It is a super-2 number, since 2×55615069² = 6186071799749522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55615067) 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, 5859 + ... + 12064.

It is an arithmetic number, because the mean of its divisors is an integer number (7259220).

Almost surely, 2^55615069 is an apocalyptic number.

It is an amenable number.

55615069 is a deficient number, since it is larger than the sum of its proper divisors (2458691).

55615069 is a wasteful number, since it uses less digits than its factorization.

55615069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18059.

The product of its (nonzero) digits is 40500, while the sum is 37.

The square root of 55615069 is about 7457.5511396168. The cubic root of 55615069 is about 381.7076173355.

It can be divided in two parts, 556 and 15069, that added together give a 6-th power (15625 = 5⁶).

The spelling of 55615069 in words is "fifty-five million, six hundred fifteen thousand, sixty-nine".