51158007 has 8 divisors (see below), whose sum is σ = 75789680. Its totient is φ = 34105320.

The previous prime is 51157999. The next prime is 51158011. The reversal of 51158007 is 70085115.

It is not a de Polignac number, because 51158007 - 2³ = 51157999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1894741 = 51158007 / (5 + 1 + 1 + 5 + 8 + 0 + 0 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51158027) 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, 947344 + ... + 947397.

It is an arithmetic number, because the mean of its divisors is an integer number (9473710).

Almost surely, 2^51158007 is an apocalyptic number.

51158007 is a deficient number, since it is larger than the sum of its proper divisors (24631673).

51158007 is a wasteful number, since it uses less digits than its factorization.

51158007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1894750 (or 1894744 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 27.

The square root of 51158007 is about 7152.4825760011. The cubic root of 51158007 is about 371.2255610889.

The spelling of 51158007 in words is "fifty-one million, one hundred fifty-eight thousand, seven".