47509051 has 2 divisors, whose sum is σ = 47509052. Its totient is φ = 47509050.

The previous prime is 47509043. The next prime is 47509103. The reversal of 47509051 is 15090574.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47509051 - 2³ = 47509043 is a prime.

It is equal to p_2860474 and since 47509051 and 2860474 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (47509751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23754525 + 23754526.

It is an arithmetic number, because the mean of its divisors is an integer number (23754526).

Almost surely, 2^47509051 is an apocalyptic number.

47509051 is a deficient number, since it is larger than the sum of its proper divisors (1).

47509051 is an equidigital number, since it uses as much as digits as its factorization.

47509051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 47509051 is about 6892.6809733224. The cubic root of 47509051 is about 362.1808234512.

The spelling of 47509051 in words is "forty-seven million, five hundred nine thousand, fifty-one".