47488451 has 4 divisors (see below), whose sum is σ = 48293400. Its totient is φ = 46683504.

The previous prime is 47488433. The next prime is 47488481. The reversal of 47488451 is 15488474.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47488451 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47488399 and 47488408.

It is not an unprimeable number, because it can be changed into a prime (47488411) 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, 402386 + ... + 402503.

It is an arithmetic number, because the mean of its divisors is an integer number (12073350).

Almost surely, 2^47488451 is an apocalyptic number.

47488451 is a deficient number, since it is larger than the sum of its proper divisors (804949).

47488451 is an equidigital number, since it uses as much as digits as its factorization.

47488451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 804948.

The product of its digits is 143360, while the sum is 41.

The square root of 47488451 is about 6891.1864725895. The cubic root of 47488451 is about 362.1284684899.

The spelling of 47488451 in words is "forty-seven million, four hundred eighty-eight thousand, four hundred fifty-one".