74220051 has 8 divisors (see below), whose sum is σ = 99163584. Its totient is φ = 49378280.

The previous prime is 74220043. The next prime is 74220071. The reversal of 74220051 is 15002247.

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

It is a cyclic number.

It is not a de Polignac number, because 74220051 - 2³ = 74220043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74220001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23721 + ... + 26666.

It is an arithmetic number, because the mean of its divisors is an integer number (12395448).

Almost surely, 2^74220051 is an apocalyptic number.

74220051 is a deficient number, since it is larger than the sum of its proper divisors (24943533).

74220051 is a wasteful number, since it uses less digits than its factorization.

74220051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50881.

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 74220051 is about 8615.1059772936. The cubic root of 74220051 is about 420.2493813752.

Adding to 74220051 its reverse (15002247), we get a palindrome (89222298).

The spelling of 74220051 in words is "seventy-four million, two hundred twenty thousand, fifty-one".