51148046 has 4 divisors (see below), whose sum is σ = 76722072. Its totient is φ = 25574022.

The previous prime is 51148039. The next prime is 51148051. The reversal of 51148046 is 64084115.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×51148046² = 5232245219236232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12787010 + ... + 12787013.

It is an arithmetic number, because the mean of its divisors is an integer number (19180518).

Almost surely, 2^51148046 is an apocalyptic number.

51148046 is a deficient number, since it is larger than the sum of its proper divisors (25574026).

51148046 is a wasteful number, since it uses less digits than its factorization.

51148046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25574025.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 51148046 is about 7151.7862104512. The cubic root of 51148046 is about 371.2014656895.

The spelling of 51148046 in words is "fifty-one million, one hundred forty-eight thousand, forty-six".