62501206421 has 4 divisors (see below), whose sum is σ = 62582062572. Its totient is φ = 62420350272.

The previous prime is 62501206403. The next prime is 62501206423. The reversal of 62501206421 is 12460210526.

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

It can be written as a sum of positive squares in 2 ways, for example, as 13903003921 + 48598202500 = 117911^2 + 220450^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-62501206421 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 (62501206423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40426916 + ... + 40428461.

It is an arithmetic number, because the mean of its divisors is an integer number (15645515643).

Almost surely, 2^62501206421 is an apocalyptic number.

It is an amenable number.

62501206421 is a deficient number, since it is larger than the sum of its proper divisors (80856151).

62501206421 is an equidigital number, since it uses as much as digits as its factorization.

62501206421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80856150.

The product of its (nonzero) digits is 5760, while the sum is 29.

Adding to 62501206421 its reverse (12460210526), we get a palindrome (74961416947).

The spelling of 62501206421 in words is "sixty-two billion, five hundred one million, two hundred six thousand, four hundred twenty-one".