51470442 has 12 divisors (see below), whose sum is σ = 111519330. Its totient is φ = 17156808.

The previous prime is 51470437. The next prime is 51470453. The reversal of 51470442 is 24407415.

It can be written as a sum of positive squares in only one way, i.e., 49829481 + 1640961 = 7059^2 + 1281^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1429717 + ... + 1429752.

Almost surely, 2^51470442 is an apocalyptic number.

51470442 is an abundant number, since it is smaller than the sum of its proper divisors (60048888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51470442 is a wasteful number, since it uses less digits than its factorization.

51470442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2859477 (or 2859474 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 27.

The square root of 51470442 is about 7174.2903481808. The cubic root of 51470442 is about 371.9797508922.

Adding to 51470442 its reverse (24407415), we get a palindrome (75877857).

The spelling of 51470442 in words is "fifty-one million, four hundred seventy thousand, four hundred forty-two".