47070551 has 4 divisors (see below), whose sum is σ = 51349704. Its totient is φ = 42791400.

The previous prime is 47070503. The next prime is 47070557. The reversal of 47070551 is 15507074.

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-47070551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47070557) 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, 2139560 + ... + 2139581.

It is an arithmetic number, because the mean of its divisors is an integer number (12837426).

Almost surely, 2^47070551 is an apocalyptic number.

47070551 is a deficient number, since it is larger than the sum of its proper divisors (4279153).

47070551 is a wasteful number, since it uses less digits than its factorization.

47070551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4279152.

The product of its (nonzero) digits is 4900, while the sum is 29.

The square root of 47070551 is about 6860.7981314130. The cubic root of 47070551 is about 361.0630895739.

The spelling of 47070551 in words is "forty-seven million, seventy thousand, five hundred fifty-one".