54721474 has 4 divisors (see below), whose sum is σ = 82082214. Its totient is φ = 27360736.

The previous prime is 54721441. The next prime is 54721517. The reversal of 54721474 is 47412745.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 54656449 + 65025 = 7393^2 + 255^2 .

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13680367 + ... + 13680370.

Almost surely, 2^54721474 is an apocalyptic number.

54721474 is a deficient number, since it is larger than the sum of its proper divisors (27360740).

54721474 is a wasteful number, since it uses less digits than its factorization.

54721474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27360739.

The product of its digits is 31360, while the sum is 34.

The square root of 54721474 is about 7397.3964338813. The cubic root of 54721474 is about 379.6522071741.

The spelling of 54721474 in words is "fifty-four million, seven hundred twenty-one thousand, four hundred seventy-four".