51348492 has 120 divisors (see below), whose sum is σ = 147418656. Its totient is φ = 15489792.

The previous prime is 51348481. The next prime is 51348497. The reversal of 51348492 is 29484315.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (51348497) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 307393 + ... + 307559.

Almost surely, 2^51348492 is an apocalyptic number.

51348492 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51348492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73709328).

51348492 is an abundant number, since it is smaller than the sum of its proper divisors (96070164).

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

51348492 is a wasteful number, since it uses less digits than its factorization.

51348492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269 (or 258 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 51348492 is about 7165.7862094818. The cubic root of 51348492 is about 371.6857387529.

The spelling of 51348492 in words is "fifty-one million, three hundred forty-eight thousand, four hundred ninety-two".