51378370 has 16 divisors (see below), whose sum is σ = 93000960. Its totient is φ = 20435824.

The previous prime is 51378323. The next prime is 51378391. The reversal of 51378370 is 7387315.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12562 + ... + 16141.

It is an arithmetic number, because the mean of its divisors is an integer number (5812560).

Almost surely, 2^51378370 is an apocalyptic number.

51378370 is a deficient number, since it is larger than the sum of its proper divisors (41622590).

51378370 is a wasteful number, since it uses less digits than its factorization.

51378370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28889.

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 51378370 is about 7167.8706740566. The cubic root of 51378370 is about 371.7578153472.

The spelling of 51378370 in words is "fifty-one million, three hundred seventy-eight thousand, three hundred seventy".