51970477 has 8 divisors (see below), whose sum is σ = 57774080. Its totient is φ = 46424880.

The previous prime is 51970469. The next prime is 51970511. The reversal of 51970477 is 77407915.

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

It is a cyclic number.

It is not a de Polignac number, because 51970477 - 2³ = 51970469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51970447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64077 + ... + 64882.

It is an arithmetic number, because the mean of its divisors is an integer number (7221760).

Almost surely, 2^51970477 is an apocalyptic number.

It is an amenable number.

51970477 is a deficient number, since it is larger than the sum of its proper divisors (5803603).

51970477 is a wasteful number, since it uses less digits than its factorization.

51970477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129003.

The product of its (nonzero) digits is 61740, while the sum is 40.

The square root of 51970477 is about 7209.0552085554. The cubic root of 51970477 is about 373.1804645357.

It can be divided in two parts, 519 and 70477, that multiplied together give a palindrome (36577563).

The spelling of 51970477 in words is "fifty-one million, nine hundred seventy thousand, four hundred seventy-seven".