51237423 has 6 divisors (see below), whose sum is σ = 74009624. Its totient is φ = 34158276.

The previous prime is 51237419. The next prime is 51237427. The reversal of 51237423 is 32473215.

51237423 is a `hidden beast` number, since 5 + 1 + 237 + 423 = 666.

It is an interprime number because it is at equal distance from previous prime (51237419) and next prime (51237427).

It is not a de Polignac number, because 51237423 - 2² = 51237419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51237427) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2846515 + ... + 2846532.

Almost surely, 2^51237423 is an apocalyptic number.

51237423 is a deficient number, since it is larger than the sum of its proper divisors (22772201).

51237423 is a wasteful number, since it uses less digits than its factorization.

51237423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5693053 (or 5693050 counting only the distinct ones).

The product of its digits is 5040, while the sum is 27.

The square root of 51237423 is about 7158.0320619567. The cubic root of 51237423 is about 371.4175545408.

The spelling of 51237423 in words is "fifty-one million, two hundred thirty-seven thousand, four hundred twenty-three".