53240425 has 24 divisors (see below), whose sum is σ = 77066496. Its totient is φ = 35725440.

The previous prime is 53240419. The next prime is 53240431. The reversal of 53240425 is 52404235.

It is an interprime number because it is at equal distance from previous prime (53240419) and next prime (53240431).

It is not a de Polignac number, because 53240425 - 2³ = 53240417 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

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 53240425.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4989 + ... + 11461.

It is an arithmetic number, because the mean of its divisors is an integer number (3211104).

Almost surely, 2^53240425 is an apocalyptic number.

It is an amenable number.

53240425 is a deficient number, since it is larger than the sum of its proper divisors (23826071).

53240425 is a wasteful number, since it uses less digits than its factorization.

53240425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6537 (or 6532 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 53240425 is about 7296.6036619786. The cubic root of 53240425 is about 376.1957092852.

The spelling of 53240425 in words is "fifty-three million, two hundred forty thousand, four hundred twenty-five".