55310147 has 4 divisors (see below), whose sum is σ = 57714960. Its totient is φ = 52905336.

The previous prime is 55310131. The next prime is 55310149. The reversal of 55310147 is 74101355.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 55310147 - 2⁴ = 55310131 is a prime.

It is a super-2 number, since 2×55310147² = 6118424722323218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55310149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1202372 + ... + 1202417.

It is an arithmetic number, because the mean of its divisors is an integer number (14428740).

Almost surely, 2^55310147 is an apocalyptic number.

55310147 is a deficient number, since it is larger than the sum of its proper divisors (2404813).

55310147 is a wasteful number, since it uses less digits than its factorization.

55310147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2404812.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 55310147 is about 7437.0791981799. The cubic root of 55310147 is about 381.0087395207.

The spelling of 55310147 in words is "fifty-five million, three hundred ten thousand, one hundred forty-seven".