53870537 has 4 divisors (see below), whose sum is σ = 61566336. Its totient is φ = 46174740.

The previous prime is 53870533. The next prime is 53870549. The reversal of 53870537 is 73507835.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 53870537 - 2² = 53870533 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 53870537.

It is not an unprimeable number, because it can be changed into a prime (53870533) 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, 3847889 + ... + 3847902.

It is an arithmetic number, because the mean of its divisors is an integer number (15391584).

Almost surely, 2^53870537 is an apocalyptic number.

It is an amenable number.

53870537 is a deficient number, since it is larger than the sum of its proper divisors (7695799).

53870537 is an equidigital number, since it uses as much as digits as its factorization.

53870537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7695798.

The product of its (nonzero) digits is 88200, while the sum is 38.

The square root of 53870537 is about 7339.6551008886. The cubic root of 53870537 is about 377.6740118474.

The spelling of 53870537 in words is "fifty-three million, eight hundred seventy thousand, five hundred thirty-seven".