53151415 has 4 divisors (see below), whose sum is σ = 63781704. Its totient is φ = 42521128.

The previous prime is 53151409. The next prime is 53151419. The reversal of 53151415 is 51415135.

It is a happy number.

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 53151415 - 2¹⁵ = 53118647 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53151415.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53151419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5315137 + ... + 5315146.

It is an arithmetic number, because the mean of its divisors is an integer number (15945426).

Almost surely, 2^53151415 is an apocalyptic number.

53151415 is a deficient number, since it is larger than the sum of its proper divisors (10630289).

53151415 is a wasteful number, since it uses less digits than its factorization.

53151415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10630288.

The product of its digits is 1500, while the sum is 25.

The square root of 53151415 is about 7290.5016974142. The cubic root of 53151415 is about 375.9859447553.

The spelling of 53151415 in words is "fifty-three million, one hundred fifty-one thousand, four hundred fifteen".