51496946 has 4 divisors (see below), whose sum is σ = 77245422. Its totient is φ = 25748472.

The previous prime is 51496919. The next prime is 51496969. The reversal of 51496946 is 64969415.

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

It can be written as a sum of positive squares in only one way, i.e., 28504921 + 22992025 = 5339^2 + 4795^2 .

It is a junction number, because it is equal to n+sod(n) for n = 51496897 and 51496906.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12874235 + ... + 12874238.

Almost surely, 2^51496946 is an apocalyptic number.

51496946 is a deficient number, since it is larger than the sum of its proper divisors (25748476).

51496946 is a wasteful number, since it uses less digits than its factorization.

51496946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25748475.

The product of its digits is 233280, while the sum is 44.

The square root of 51496946 is about 7176.1372617865. The cubic root of 51496946 is about 372.0435885641.

The spelling of 51496946 in words is "fifty-one million, four hundred ninety-six thousand, nine hundred forty-six".