51157603 has 8 divisors (see below), whose sum is σ = 58572800. Its totient is φ = 43769160.

The previous prime is 51157591. The next prime is 51157609. The reversal of 51157603 is 30675115.

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 51157603 - 2⁹ = 51157091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51157609) 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, 2403 + ... + 10396.

It is an arithmetic number, because the mean of its divisors is an integer number (7321600).

Almost surely, 2^51157603 is an apocalyptic number.

51157603 is a deficient number, since it is larger than the sum of its proper divisors (7415197).

51157603 is a wasteful number, since it uses less digits than its factorization.

51157603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13377.

The product of its (nonzero) digits is 3150, while the sum is 28.

The square root of 51157603 is about 7152.4543340031. The cubic root of 51157603 is about 371.2245838843.

The spelling of 51157603 in words is "fifty-one million, one hundred fifty-seven thousand, six hundred three".