51452207 has 4 divisors (see below), whose sum is σ = 51469200. Its totient is φ = 51435216.

The previous prime is 51452201. The next prime is 51452213. The reversal of 51452207 is 70225415.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (51452201) and next prime (51452213).

It is a cyclic number.

It is not a de Polignac number, because 51452207 - 2⁶ = 51452143 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 (51452201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2582 + ... + 10467.

It is an arithmetic number, because the mean of its divisors is an integer number (12867300).

Almost surely, 2^51452207 is an apocalyptic number.

51452207 is a deficient number, since it is larger than the sum of its proper divisors (16993).

51452207 is a wasteful number, since it uses less digits than its factorization.

51452207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16992.

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 51452207 is about 7173.0193781977. The cubic root of 51452207 is about 371.9358172500.

The spelling of 51452207 in words is "fifty-one million, four hundred fifty-two thousand, two hundred seven".