61725223400503 has 12 divisors (see below), whose sum is σ = 66849384210840. Its totient is φ = 56967898274976.

The previous prime is 61725223400419. The next prime is 61725223400513. The reversal of 61725223400503 is 30500432252716.

It is not a de Polignac number, because 61725223400503 - 2²⁹ = 61724686529591 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 (61725223400513) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28540273 + ... + 30626746.

It is an arithmetic number, because the mean of its divisors is an integer number (5570782017570).

Almost surely, 2^{61725223400503} is an apocalyptic number.

61725223400503 is a deficient number, since it is larger than the sum of its proper divisors (5124160810337).

61725223400503 is a wasteful number, since it uses less digits than its factorization.

61725223400503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59173218 (or 59173205 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 40.

The spelling of 61725223400503 in words is "sixty-one trillion, seven hundred twenty-five billion, two hundred twenty-three million, four hundred thousand, five hundred three".