51349475 has 6 divisors (see below), whose sum is σ = 63673380. Its totient is φ = 41079560.

The previous prime is 51349471. The next prime is 51349481. The reversal of 51349475 is 57494315.

It is not a de Polignac number, because 51349475 - 2² = 51349471 is a prime.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (51349471) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1026965 + ... + 1027014.

It is an arithmetic number, because the mean of its divisors is an integer number (10612230).

Almost surely, 2^51349475 is an apocalyptic number.

51349475 is a deficient number, since it is larger than the sum of its proper divisors (12323905).

51349475 is a wasteful number, since it uses less digits than its factorization.

51349475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2053989 (or 2053984 counting only the distinct ones).

The product of its digits is 75600, while the sum is 38.

The square root of 51349475 is about 7165.8547989755. The cubic root of 51349475 is about 371.6881105509.

The spelling of 51349475 in words is "fifty-one million, three hundred forty-nine thousand, four hundred seventy-five".