53257406 has 4 divisors (see below), whose sum is σ = 79886112. Its totient is φ = 26628702.

The previous prime is 53257403. The next prime is 53257417. The reversal of 53257406 is 60475235.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53257403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13314350 + ... + 13314353.

It is an arithmetic number, because the mean of its divisors is an integer number (19971528).

Almost surely, 2^53257406 is an apocalyptic number.

53257406 is a deficient number, since it is larger than the sum of its proper divisors (26628706).

53257406 is a wasteful number, since it uses less digits than its factorization.

53257406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26628705.

The product of its (nonzero) digits is 25200, while the sum is 32.

The square root of 53257406 is about 7297.7671927789. The cubic root of 53257406 is about 376.2357008285.

The spelling of 53257406 in words is "fifty-three million, two hundred fifty-seven thousand, four hundred six".