55150747 has 4 divisors (see below), whose sum is σ = 55696896. Its totient is φ = 54604600.

The previous prime is 55150729. The next prime is 55150751. The reversal of 55150747 is 74705155.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 55150747 - 2¹¹ = 55148699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55150717) 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, 272923 + ... + 273124.

It is an arithmetic number, because the mean of its divisors is an integer number (13924224).

Almost surely, 2^55150747 is an apocalyptic number.

55150747 is a deficient number, since it is larger than the sum of its proper divisors (546149).

55150747 is a wasteful number, since it uses less digits than its factorization.

55150747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546148.

The product of its (nonzero) digits is 24500, while the sum is 34.

The square root of 55150747 is about 7426.3548932165. The cubic root of 55150747 is about 380.6423737781.

The spelling of 55150747 in words is "fifty-five million, one hundred fifty thousand, seven hundred forty-seven".