51070157 has 8 divisors (see below), whose sum is σ = 53900160. Its totient is φ = 48254400.

The previous prime is 51070139. The next prime is 51070169. The reversal of 51070157 is 75107015.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51070157 - 2¹⁰ = 51069133 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 (51070177) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4268 + ... + 10970.

It is an arithmetic number, because the mean of its divisors is an integer number (6737520).

Almost surely, 2^51070157 is an apocalyptic number.

It is an amenable number.

51070157 is a deficient number, since it is larger than the sum of its proper divisors (2830003).

51070157 is a wasteful number, since it uses less digits than its factorization.

51070157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7123.

The product of its (nonzero) digits is 1225, while the sum is 26.

The square root of 51070157 is about 7146.3387129355. The cubic root of 51070157 is about 371.0129462719.

The spelling of 51070157 in words is "fifty-one million, seventy thousand, one hundred fifty-seven".