51253807 has 8 divisors (see below), whose sum is σ = 57214080. Its totient is φ = 45510360.

The previous prime is 51253781. The next prime is 51253823. The reversal of 51253807 is 70835215.

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 51253807 - 2⁷ = 51253679 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51253837) 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, 53707 + ... + 54652.

It is an arithmetic number, because the mean of its divisors is an integer number (7151760).

Almost surely, 2^51253807 is an apocalyptic number.

51253807 is a deficient number, since it is larger than the sum of its proper divisors (5960273).

51253807 is a wasteful number, since it uses less digits than its factorization.

51253807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108413.

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 51253807 is about 7159.1764191141. The cubic root of 51253807 is about 371.4571392580.

The spelling of 51253807 in words is "fifty-one million, two hundred fifty-three thousand, eight hundred seven".