651625050 has 48 divisors (see below), whose sum is σ = 1627708320. Its totient is φ = 172511040.

The previous prime is 651625031. The next prime is 651625057. The reversal of 651625050 is 50526156.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 651624999 and 651625017.

It is not an unprimeable number, because it can be changed into a prime (651625057) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5224 + ... + 36476.

It is an arithmetic number, because the mean of its divisors is an integer number (33910590).

Almost surely, 2^651625050 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 651625050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (813854160).

651625050 is an abundant number, since it is smaller than the sum of its proper divisors (976083270).

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

651625050 is a wasteful number, since it uses less digits than its factorization.

651625050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31407 (or 31402 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 651625050 is about 25526.9475260949. The cubic root of 651625050 is about 866.9603927155.

The spelling of 651625050 in words is "six hundred fifty-one million, six hundred twenty-five thousand, fifty".