625032012145421 has 8 divisors (see below), whose sum is σ = 636614306633760. Its totient is φ = 613482668709552.

The previous prime is 625032012145417. The next prime is 625032012145469. The reversal of 625032012145421 is 124541210230526.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 625032012145421 - 2² = 625032012145417 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625032012147421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8237724830 + ... + 8237800703.

It is an arithmetic number, because the mean of its divisors is an integer number (79576788329220).

Almost surely, 2^{625032012145421} is an apocalyptic number.

It is an amenable number.

625032012145421 is a deficient number, since it is larger than the sum of its proper divisors (11582294488339).

625032012145421 is a wasteful number, since it uses less digits than its factorization.

625032012145421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16475526235.

The product of its (nonzero) digits is 115200, while the sum is 38.

Adding to 625032012145421 its reverse (124541210230526), we get a palindrome (749573222375947).

The spelling of 625032012145421 in words is "six hundred twenty-five trillion, thirty-two billion, twelve million, one hundred forty-five thousand, four hundred twenty-one".