51919075 has 24 divisors (see below), whose sum is σ = 70026768. Its totient is φ = 37956480.

The previous prime is 51919061. The next prime is 51919081. The reversal of 51919075 is 57091915.

It is a happy number.

It is not a de Polignac number, because 51919075 - 2¹⁷ = 51788003 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34029 + ... + 35521.

It is an arithmetic number, because the mean of its divisors is an integer number (2917782).

Almost surely, 2^51919075 is an apocalyptic number.

51919075 is a deficient number, since it is larger than the sum of its proper divisors (18107693).

51919075 is a wasteful number, since it uses less digits than its factorization.

51919075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1623 (or 1618 counting only the distinct ones).

The product of its (nonzero) digits is 14175, while the sum is 37.

The square root of 51919075 is about 7205.4892269713. The cubic root of 51919075 is about 373.0573911361.

The spelling of 51919075 in words is "fifty-one million, nine hundred nineteen thousand, seventy-five".