51770493 has 24 divisors (see below), whose sum is σ = 78354432. Its totient is φ = 32876448.

The previous prime is 51770489. The next prime is 51770533. The reversal of 51770493 is 39407715.

It is a happy number.

It is not a de Polignac number, because 51770493 - 2² = 51770489 is a prime.

It is a super-3 number, since 3×51770493³ (a number of 24 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51770483) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78955 + ... + 79607.

It is an arithmetic number, because the mean of its divisors is an integer number (3264768).

Almost surely, 2^51770493 is an apocalyptic number.

It is an amenable number.

51770493 is a deficient number, since it is larger than the sum of its proper divisors (26583939).

51770493 is a wasteful number, since it uses less digits than its factorization.

51770493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065 (or 1062 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 36.

The square root of 51770493 is about 7195.1715059476. The cubic root of 51770493 is about 372.7011792578.

The spelling of 51770493 in words is "fifty-one million, seven hundred seventy thousand, four hundred ninety-three".