51241415 has 4 divisors (see below), whose sum is σ = 61489704. Its totient is φ = 40993128.

The previous prime is 51241409. The next prime is 51241427. The reversal of 51241415 is 51414215.

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

It is a cyclic number.

It is not a de Polignac number, because 51241415 - 2¹⁶ = 51175879 is a prime.

It is a super-2 number, since 2×51241415² = 5251365222404450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5124137 + ... + 5124146.

It is an arithmetic number, because the mean of its divisors is an integer number (15372426).

Almost surely, 2^51241415 is an apocalyptic number.

51241415 is a deficient number, since it is larger than the sum of its proper divisors (10248289).

51241415 is a wasteful number, since it uses less digits than its factorization.

51241415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10248288.

The product of its digits is 800, while the sum is 23.

The square root of 51241415 is about 7158.3109041170. The cubic root of 51241415 is about 371.4272002274.

The spelling of 51241415 in words is "fifty-one million, two hundred forty-one thousand, four hundred fifteen".