51470264 has 16 divisors (see below), whose sum is σ = 98560800. Its totient is φ = 25187392.

The previous prime is 51470249. The next prime is 51470267. The reversal of 51470264 is 46207415.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51470267) 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, 68069 + ... + 68820.

It is an arithmetic number, because the mean of its divisors is an integer number (6160050).

Almost surely, 2^51470264 is an apocalyptic number.

It is an amenable number.

51470264 is a deficient number, since it is larger than the sum of its proper divisors (47090536).

51470264 is a wasteful number, since it uses less digits than its factorization.

51470264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136942 (or 136938 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 51470264 is about 7174.2779427619. The cubic root of 51470264 is about 371.9793220865.

Adding to 51470264 its reverse (46207415), we get a palindrome (97677679).

The spelling of 51470264 in words is "fifty-one million, four hundred seventy thousand, two hundred sixty-four".