20251145629 has 16 divisors (see below), whose sum is σ = 23796601920. Its totient is φ = 16990364160.

The previous prime is 20251145623. The next prime is 20251145659. The reversal of 20251145629 is 92654115202.

It is a de Polignac number, because none of the positive numbers 2^k-20251145629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20251145623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 825462 + ... + 849640.

It is an arithmetic number, because the mean of its divisors is an integer number (1487287620).

Almost surely, 2^20251145629 is an apocalyptic number.

It is an amenable number.

20251145629 is a deficient number, since it is larger than the sum of its proper divisors (3545456291).

20251145629 is a wasteful number, since it uses less digits than its factorization.

20251145629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30060.

The product of its (nonzero) digits is 43200, while the sum is 37.

The spelling of 20251145629 in words is "twenty billion, two hundred fifty-one million, one hundred forty-five thousand, six hundred twenty-nine".