61030003125 has 96 divisors (see below), whose sum is σ = 125183487744. Its totient is φ = 25752960000.

The previous prime is 61030003121. The next prime is 61030003159. The reversal of 61030003125 is 52130003016.

It is not a de Polignac number, because 61030003125 - 2² = 61030003121 is a prime.

It is a super-2 number, since 2×61030003125² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61030003121) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 817357 + ... + 888893.

It is an arithmetic number, because the mean of its divisors is an integer number (1303994664).

Almost surely, 2^61030003125 is an apocalyptic number.

61030003125 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

61030003125 is an abundant number, since it is smaller than the sum of its proper divisors (64153484619).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61030003125 is an equidigital number, since it uses as much as digits as its factorization.

61030003125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71585 (or 71565 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 21.

The spelling of 61030003125 in words is "sixty-one billion, thirty million, three thousand, one hundred twenty-five".