51113770 has 8 divisors (see below), whose sum is σ = 92004804. Its totient is φ = 20445504.

The previous prime is 51113767. The next prime is 51113771. The reversal of 51113770 is 7731115.

It can be written as a sum of positive squares in 2 ways, for example, as 45252529 + 5861241 = 6727^2 + 2421^2 .

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

It is a super-2 number, since 2×51113770² = 5225234967225800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51113771) 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, 2555679 + ... + 2555698.

Almost surely, 2^51113770 is an apocalyptic number.

51113770 is a deficient number, since it is larger than the sum of its proper divisors (40891034).

51113770 is a wasteful number, since it uses less digits than its factorization.

51113770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5111384.

The product of its (nonzero) digits is 735, while the sum is 25.

The square root of 51113770 is about 7149.3894844245. The cubic root of 51113770 is about 371.1185290276.

Adding to 51113770 its reverse (7731115), we get a palindrome (58844885).

The spelling of 51113770 in words is "fifty-one million, one hundred thirteen thousand, seven hundred seventy".