51373265 has 8 divisors (see below), whose sum is σ = 62391168. Its totient is φ = 40603120.

The previous prime is 51373253. The next prime is 51373277. The reversal of 51373265 is 56237315.

It is an interprime number because it is at equal distance from previous prime (51373253) and next prime (51373277).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51373265 - 2⁸ = 51373009 is a prime.

It is a Duffinian number.

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, 61481 + ... + 62310.

It is an arithmetic number, because the mean of its divisors is an integer number (7798896).

Almost surely, 2^51373265 is an apocalyptic number.

It is an amenable number.

51373265 is a deficient number, since it is larger than the sum of its proper divisors (11017903).

51373265 is a wasteful number, since it uses less digits than its factorization.

51373265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123879.

The product of its digits is 18900, while the sum is 32.

The square root of 51373265 is about 7167.5145622454. The cubic root of 51373265 is about 371.7455022116.

The spelling of 51373265 in words is "fifty-one million, three hundred seventy-three thousand, two hundred sixty-five".