51414545 has 64 divisors (see below), whose sum is σ = 84188160. Its totient is φ = 29297664.

The previous prime is 51414509. The next prime is 51414577. The reversal of 51414545 is 54541415.

It is not a de Polignac number, because 51414545 - 2⁶ = 51414481 is a prime.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a nialpdrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2235404 + ... + 2235426.

It is an arithmetic number, because the mean of its divisors is an integer number (1315440).

Almost surely, 2^51414545 is an apocalyptic number.

It is an amenable number.

51414545 is a deficient number, since it is larger than the sum of its proper divisors (32773615).

51414545 is a wasteful number, since it uses less digits than its factorization.

51414545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99 (or 65 counting only the distinct ones).

The product of its digits is 8000, while the sum is 29.

The square root of 51414545 is about 7170.3936433086. The cubic root of 51414545 is about 371.8450452062.

The spelling of 51414545 in words is "fifty-one million, four hundred fourteen thousand, five hundred forty-five".