3551425140 has 48 divisors (see below), whose sum is σ = 9955737792. Its totient is φ = 945927936.

The previous prime is 3551425121. The next prime is 3551425153. The reversal of 3551425140 is 415241553.

It is a super-2 number, since 2×3551425140² = 25225241050048039200, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 3551425098 and 3551425107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16887 + ... + 85953.

It is an arithmetic number, because the mean of its divisors is an integer number (207411204).

Almost surely, 2^3551425140 is an apocalyptic number.

3551425140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3551425140 is an abundant number, since it is smaller than the sum of its proper divisors (6404312652).

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

3551425140 is a wasteful number, since it uses less digits than its factorization.

3551425140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69936 (or 69934 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 3551425140 is about 59593.8347482355. The cubic root of 3551425140 is about 1525.6944095428.

Adding to 3551425140 its reverse (415241553), we get a palindrome (3966666693).

The spelling of 3551425140 in words is "three billion, five hundred fifty-one million, four hundred twenty-five thousand, one hundred forty".