51429911 has 12 divisors (see below), whose sum is σ = 55914552. Its totient is φ = 47282976.

The previous prime is 51429901. The next prime is 51429919. The reversal of 51429911 is 11992415.

It is a de Polignac number, because none of the positive numbers 2^k-51429911 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 (51429919) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58205 + ... + 59081.

It is an arithmetic number, because the mean of its divisors is an integer number (4659546).

Almost surely, 2^51429911 is an apocalyptic number.

51429911 is a deficient number, since it is larger than the sum of its proper divisors (4484641).

51429911 is a wasteful number, since it uses less digits than its factorization.

51429911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1250 (or 1237 counting only the distinct ones).

The product of its digits is 3240, while the sum is 32.

The square root of 51429911 is about 7171.4650525538. The cubic root of 51429911 is about 371.8820853204.

The spelling of 51429911 in words is "fifty-one million, four hundred twenty-nine thousand, nine hundred eleven".