47520451 has 12 divisors (see below), whose sum is σ = 52411576. Its totient is φ = 43053120.

The previous prime is 47520449. The next prime is 47520497. The reversal of 47520451 is 15402574.

47520451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 47520451 - 2¹ = 47520449 is a prime.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47520401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51940 + ... + 52846.

Almost surely, 2^47520451 is an apocalyptic number.

47520451 is a deficient number, since it is larger than the sum of its proper divisors (4891125).

47520451 is a wasteful number, since it uses less digits than its factorization.

47520451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1362 (or 1351 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 47520451 is about 6893.5078878609. The cubic root of 47520451 is about 362.2097900803.

The spelling of 47520451 in words is "forty-seven million, five hundred twenty thousand, four hundred fifty-one".