53222738 has 8 divisors (see below), whose sum is σ = 80566860. Its totient is φ = 26367120.

The previous prime is 53222737. The next prime is 53222773. The reversal of 53222738 is 83722235.

It can be written as a sum of positive squares in 2 ways, for example, as 52809289 + 413449 = 7267^2 + 643^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (53222731) 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, 121853 + ... + 122288.

Almost surely, 2^53222738 is an apocalyptic number.

53222738 is a deficient number, since it is larger than the sum of its proper divisors (27344122).

53222738 is a wasteful number, since it uses less digits than its factorization.

53222738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244252.

The product of its digits is 20160, while the sum is 32.

The square root of 53222738 is about 7295.3915590597. The cubic root of 53222738 is about 376.1540460161.

The spelling of 53222738 in words is "fifty-three million, two hundred twenty-two thousand, seven hundred thirty-eight".