1651355052 has 24 divisors (see below), whose sum is σ = 3899587776. Its totient is φ = 543819408.

The previous prime is 1651355047. The next prime is 1651355053. The reversal of 1651355052 is 2505531561.

It is not an unprimeable number, because it can be changed into a prime (1651355053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 827998 + ... + 829989.

It is an arithmetic number, because the mean of its divisors is an integer number (162482824).

Almost surely, 2^1651355052 is an apocalyptic number.

1651355052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1651355052 is an abundant number, since it is smaller than the sum of its proper divisors (2248232724).

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

1651355052 is a wasteful number, since it uses less digits than its factorization.

1651355052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1658077 (or 1658075 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 33.

The square root of 1651355052 is about 40636.8681371978. The cubic root of 1651355052 is about 1181.9891404490.

The spelling of 1651355052 in words is "one billion, six hundred fifty-one million, three hundred fifty-five thousand, fifty-two".