51423153 has 4 divisors (see below), whose sum is σ = 68564208. Its totient is φ = 34282100.

The previous prime is 51423109. The next prime is 51423157. The reversal of 51423153 is 35132415.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51423153 - 2²¹ = 49326001 is a prime.

It is a super-2 number, since 2×51423153² = 5288681328922818, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51423157) 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, 8570523 + ... + 8570528.

It is an arithmetic number, because the mean of its divisors is an integer number (17141052).

Almost surely, 2^51423153 is an apocalyptic number.

It is an amenable number.

51423153 is a deficient number, since it is larger than the sum of its proper divisors (17141055).

51423153 is a wasteful number, since it uses less digits than its factorization.

51423153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17141054.

The product of its digits is 1800, while the sum is 24.

The square root of 51423153 is about 7170.9938641725. The cubic root of 51423153 is about 371.8657959071.

Adding to 51423153 its reverse (35132415), we get a palindrome (86555568).

The spelling of 51423153 in words is "fifty-one million, four hundred twenty-three thousand, one hundred fifty-three".