55620047 has 6 divisors (see below), whose sum is σ = 64700928. Its totient is φ = 47674284.

The previous prime is 55620041. The next prime is 55620053. The reversal of 55620047 is 74002655.

It is an interprime number because it is at equal distance from previous prime (55620041) and next prime (55620053).

It is not a de Polignac number, because 55620047 - 2¹² = 55615951 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 (55620041) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 567503 + ... + 567600.

It is an arithmetic number, because the mean of its divisors is an integer number (10783488).

Almost surely, 2^55620047 is an apocalyptic number.

55620047 is a deficient number, since it is larger than the sum of its proper divisors (9080881).

55620047 is a wasteful number, since it uses less digits than its factorization.

55620047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1135117 (or 1135110 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 55620047 is about 7457.8848878217. The cubic root of 55620047 is about 381.7190056388.

The spelling of 55620047 in words is "fifty-five million, six hundred twenty thousand, forty-seven".