25062621421 has 8 divisors (see below), whose sum is σ = 25104830688. Its totient is φ = 25020450000.

The previous prime is 25062621407. The next prime is 25062621461. The reversal of 25062621421 is 12412626052.

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 25062621421 - 2⁷ = 25062621293 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 (25062621461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1515246 + ... + 1531696.

It is an arithmetic number, because the mean of its divisors is an integer number (3138103836).

Almost surely, 2^25062621421 is an apocalyptic number.

It is an amenable number.

25062621421 is a deficient number, since it is larger than the sum of its proper divisors (42209267).

25062621421 is a wasteful number, since it uses less digits than its factorization.

25062621421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18923.

The product of its (nonzero) digits is 11520, while the sum is 31.

The spelling of 25062621421 in words is "twenty-five billion, sixty-two million, six hundred twenty-one thousand, four hundred twenty-one".