55461247 has 4 divisors (see below), whose sum is σ = 58380280. Its totient is φ = 52542216.

The previous prime is 55461229. The next prime is 55461313. The reversal of 55461247 is 74216455.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74216455 = 5 ⋅14843291.

It is a cyclic number.

It is not a de Polignac number, because 55461247 - 2¹¹ = 55459199 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 (55462247) 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, 1459488 + ... + 1459525.

It is an arithmetic number, because the mean of its divisors is an integer number (14595070).

Almost surely, 2^55461247 is an apocalyptic number.

55461247 is a deficient number, since it is larger than the sum of its proper divisors (2919033).

55461247 is a wasteful number, since it uses less digits than its factorization.

55461247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2919032.

The product of its digits is 33600, while the sum is 34.

The square root of 55461247 is about 7447.2308276298. The cubic root of 55461247 is about 381.3553792011.

The spelling of 55461247 in words is "fifty-five million, four hundred sixty-one thousand, two hundred forty-seven".