51478370 has 64 divisors (see below), whose sum is σ = 101896704. Its totient is φ = 18670080.

The previous prime is 51478369. The next prime is 51478373. The reversal of 51478370 is 7387415.

It is a self number, because there is not a number n which added to its sum of digits gives 51478370.

It is not an unprimeable number, because it can be changed into a prime (51478373) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 499739 + ... + 499841.

It is an arithmetic number, because the mean of its divisors is an integer number (1592136).

Almost surely, 2^51478370 is an apocalyptic number.

51478370 is a deficient number, since it is larger than the sum of its proper divisors (50418334).

51478370 is a wasteful number, since it uses less digits than its factorization.

51478370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227.

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 51478370 is about 7174.8428554220. The cubic root of 51478370 is about 371.9988486109.

The spelling of 51478370 in words is "fifty-one million, four hundred seventy-eight thousand, three hundred seventy".