61534503022250 has 32 divisors (see below), whose sum is σ = 115196137243200. Its totient is φ = 24613043178000.

The previous prime is 61534503022243. The next prime is 61534503022253. The reversal of 61534503022250 is 5222030543516.

It is not an unprimeable number, because it can be changed into a prime (61534503022253) 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, 4378901 + ... + 11926599.

It is an arithmetic number, because the mean of its divisors is an integer number (3599879288850).

Almost surely, 2^{61534503022250} is an apocalyptic number.

61534503022250 is a deficient number, since it is larger than the sum of its proper divisors (53661634220950).

61534503022250 is a wasteful number, since it uses less digits than its factorization.

61534503022250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7580327 (or 7580317 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 38.

Adding to 61534503022250 its reverse (5222030543516), we get a palindrome (66756533565766).

The spelling of 61534503022250 in words is "sixty-one trillion, five hundred thirty-four billion, five hundred three million, twenty-two thousand, two hundred fifty".